New York Giants' linebacker Mathias Kiwanuka (97), celebrates sacking Washington Redskins quarterback Jason Campbell, on the ground, during the fourth quarter of an NFL game at the Fedex Field in Landover, Md., Sunday, Sep. 23, 2007. Giants won, 24-17. Others are Gaints' Mitchell Kawika and Osi Umenyiora. (AP Photo/Manuel Balce Ceneta)

New York Giants defensive end Mathias Kiwanuka (94) during a week 7 football game against the Minnesota Vikings on October 21, 2013 in East Rutherford, NJ (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) forces a fumble on Oakland Raiders quarterback Terrelle Pryor (2) during the second half of an NFL football game, Sunday, Nov. 10, 2013, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

New York Giants linebacker Mathias Kiwanuka holds the Vince Lombardi Trophy as Devin Thomas (15) and Zak DeOssie (51) look on after the NFL Super Bowl XLVI football game against the New England Patriots, Sunday, Feb. 5, 2012, in Indianapolis. The Giants won 21-17. (AP Photo/Charlie Riedel)

New York Giants defensive end Mathias Kiwanuka (94) looks on during a bench break at the NFL regular season week 1 football game against the Carolina Panthers on Sunday, September 12, 2010 in East Rutherford, New Jersey. The Giants won the game 31-18. (AP Photo/Paul Spinelli)

Devin Thomas #15, Osi Umenyiora #72 and Mathias Kiwanuka #94 of the New York Giants celebrate with the Lombardi Trophy after beating the New England Patriots 21-17 in the NFL football Super Bowl XLVI on Sunday, Feb. 5, 2012, in Indianapolis, IN. (AP Photo/Thomas E. Witte)

New York Giants line backer Mathias Kiwanuka (94) sprints off the line of scrimmage during an NFL football game against the Dallas Cowboys, Sunday, Sept. 8, 2013, in Arlington, Texas. The Cowboys won 36-31. (AP Photo/Tony Gutierrez)

GLENDALE, AZ - NOVEMBER 23: Mathias Kiwanuka #97 of the New York Giants in action against the Arizona Cardinals at University of Phoenix Stadium on November 23, 2008 in Glendale, Arizona. The Giants defeated the Cardinals 37-29. (AP Photo/Tom Hauck)

Oakland Raiders quarterback Terrelle Pryor (2) fumbles the ball after being hit by New York Giants defensive end Mathias Kiwanuka during the second half of an NFL football game on Sunday, Nov. 10, 2013, in East Rutherford, N.J. The Giants won 24-20. (AP Photo/Kathy Willens)

Philadelphia Eagles quarterback Nick Foles #9 is sacked New York Giants defensive tackle Cullen Jenkins #99 and defensive end Mathias Kiwanuka #94 during the NFL game between the Philadelphia Eagles and the New York Giants on Sunday, October 6th 2013 in East Rutherford, New Jersey. The Eagles won 36-21. (AP Photo/Brian Garfinkel)

New York Giants linebacker Mathias Kiwanuka (94) looks to make a tackle during a week 12 football game against the Green Bay Packers on November 25, 2012 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

Detroit Lions quarterback Matthew Stafford (9) gets sacked by New York Giants defensive end Mathias Kiwanuka (94) during a week 16 football game on December 22, 2013 in Detroit, Michigan (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) rushes against Detroit Lions offensive tackle Riley Reiff (71) during the second half of an NFL football game in Detroit, Sunday, Dec. 22, 2013. (AP Photo/Paul Sancya)

New York Giants defensive end Mathias Kiwanuka (94) during the NFL game against the Minnesota Vikings on Monday, Oct. 21, 2013 in East Rutherford, N.J. The Giants won, 23-7. (AP Photo/Ric Tapia)

New York Giants linebacker Mathias Kiwanuka (94) sacks Green Bay Packers quarterback Aaron Rogers (12) during a week 12 football game on November 25, 2012 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) during a week 5 football game against the Philadelphia Eagles on October 6, 2013 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) during a week 8 football game against the Philadelphia Eagles on October 27, 2013 in Philadelphia, PA
(AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) during a preseason football game against the Indianapolis Colts on August 16, 2014 in Indianapolis (AP Photo/Evan Pinkus)

San Francisco 49ers quarterback Alex Smith (11) is sacked by New York Giants outside linebacker Mathias Kiwanuka (94) during the fourth quarter of an NFL football game in San Francisco, Sunday, Oct. 14, 2012. Also pictured is guard Leonard Davis (68). (AP Photo/Marcio Jose Sanchez)

New York Giants defensive end Mathias Kiwanuka (94) talk to his teammates before a preseason football game against the New York Jets on August 24, 2013 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) during a week 14 football game against the San Diego Chargers on December 8, 2013 in San Diego, California (AP Photo/Evan Pinkus)

Houston Texans running back Alfred Blue (28) is tackled by New York Giants cornerback Trumaine McBride (38) and defensive end Mathias Kiwanuka (94) in the second quarter of an NFL football game, Sunday, Sept. 21, 2014, in East Rutherford, N.J. (AP Photo/Kathy Willens)

Atlanta Falcons quarterback Matt Ryan, left, talks to New York Giants defensive end Mathias Kiwanuka at the end of an NFL football game, Sunday, Oct. 5, 2014, in East Rutherford, N.J. The Giants won 30-20. (AP Photo/Kathy Willens)

San Francisco 49ers quarterback Alex Smith (11) is sacked by New York Giants defensive tackle Linval Joseph, hidden, as outside linebacker Mathias Kiwanuka (94) converges during the third quarter of an NFL football game in San Francisco, Sunday, Oct. 14, 2012. (AP Photo/Marcio Jose Sanchez)

New York Giants linebacker Mathias Kiwanuka (94) sacks Green Bay Packers quarterback Aaron Rogers (12) during a week 12 football game on November 25, 2012 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants outside linebacker Mathias Kiwanuka is shown with his helmet off during the second half of an NFL football game Sunday, Oct. 7, 2012, in East Rutherford, N.J. The Giants won the game 41-27. (AP Photo/Peter Morgan)

Philadelphia Eagles quarterback Michael Vick (7) throws as New York Giants outside linebacker Mathias Kiwanuka (94) rushes in in the first half of an NFL football game Sunday, Sept. 30, 2012, in Philadelphia. (AP Photo/Michael Perez)

New York Giants defensive end Mathias Kiwanuka (94) during a week 11 football game against the San Francisco 49ers on November 16, 2014 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) in action during the second half of an NFL football game against the Kansas City Chiefs at Arrowhead Stadium in Kansas City, Mo., Sunday, Sept. 29, 2013. (AP Photo/Ed Zurga)

New York Giants defensive end Mathias Kiwanuka (94) during a week 17 football game against the Washington Redskins December 29, 2013 in East Rutherford, NJ (AP Photo/Evan Pinkus)

New York Giants linebacker Mathias Kiwanuka (94) in action against the New Orleans Saints at MetLife Stadium in East Rutherford, NJ, December 9, 2012. New York defeated New Orleans 52-27. (AP Photo/Damian Strohmeyer)

New York Giants defensive end Mathias Kiwanuka (94) talks to his teammates before a week 6 football game against the Philadelphia Eagles at Lincoln Financial Field on October 12, 2014 in Philadelphia, Pennsylvania (AP Photo/Evan Pinkus)

New York Giants linebacker Mathias Kiwanuka (94) celebrates a sack of Green Bay Packers quarterback Aaron Rogers (12) during a week 12 football game on November 25, 2012 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

Detroit Lions quarterback Matthew Stafford (9) is sacked by New York Giants defensive end Mathias Kiwanuka during the first quarter of an NFL football game in Detroit, Sunday, Dec. 22, 2013. (AP Photo/Duane Burleson)

New York Giants' Cullen Jenkins (99) and Mathias Kiwanuka (94) sack Philadelphia Eagles quarterback Nick Foles (9) during the second half of an NFL football game on Sunday, Oct. 6, 2013, in East Rutherford, N.J. (AP Photo/Kathy Willens)

New York Giants' Mathias Kiwanuka (94) tries to maneuver around Carolina Panthers' Jordan Gross, right, during the second half of an NFL football game in Charlotte, N.C., Sunday, Sept. 22, 2013. The Panthers won 38-0. (AP Photo/Bob Leverone)

New York Giants outside linebacker Mathias Kiwanuka (94) stands over San Francisco 49ers quarterback Alex Smith (11) after sacking him during the fourth quarter of an NFL football game in San Francisco, Sunday, Oct. 14, 2012. The Giants 26-3. (AP Photo/Marcio Jose Sanchez)

New York Giants' Mathias Kiwanuka (94) against the Carolina Panthers during the second half of an NFL football game in Charlotte, N.C., Sunday, Sept. 22, 2013. The Panthers won 38-0. (AP Photo/Bob Leverone)

New York Giants defensive end Mathias Kiwanuka (94) blocks during the second half of an NFL football game against the Kansas City Chiefs at Arrowhead Stadium in Kansas City, Mo., Sunday, Sept. 29, 2013. (AP Photo/Ed Zurga)

New York Giants linebacker Mathias Kiwanuka (94) celebrates a sack of Green Bay Packers quarterback Aaron Rogers (12) during a week 12 football game on November 25, 2012 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) looks to pass rush during an NFL game against the San Diego Chargers on December 8, 2013. The Chargers defeated the Giants 37-14. (AP Photo/Kevin Terrell)

New York Giants linebacker Mathias Kiwanuka (94) celebrates a sack of Green Bay Packers' Aaron Rodgers during the second half of an NFL football game, Sunday, Nov. 25, 2012, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

New York Giants linebacker Mathias Kiwanuka (94) looks to make a tackle during an NFL football game against the Green Bay Packers on Sunday December 4, 2011 at MetLife Stadium in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

INDIANAPOLIS, IN - FEBRUARY 05: Mathias Kiwanuka #94 of the New York Giants celebrates a victory after Super Bowl XLVI at Lucas Oil Stadium on February 5, 2012.(AP Photo/Tom Hauck)

New England Patriots wide receiver Wes Welker pulls off his helmet as New York Giants linebacker Mathias Kiwanuka (94) celebrates in the background after the Giants' 21-17 win over the Patriots in the NFL Super Bowl XLVI football game, Sunday, Feb. 5, 2012, in Indianapolis. (AP Photo/Jeff Roberson)

New York Giants linebacker Mathias Kiwanuka (94) looks to make a tackle during an NFL football game against the Washington Redskins on Sunday December 18, 2011 at MetLife Stadium in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants Mathias Kiwanuka #94 is seen in action against the New England Patriots Sebastian Vollmer #76 at Super Bowl XLVI on Sunday, February 5, 2012 in Indianapolis, IN. The Giants defeated the Patriots 21-17. (AP Photo/Gregory Payan)

New York Giants linebacker Mathias Kiwanuka (94) during the NFC Championship football game against the San Francisco 49ers on Sunday January 22, 2012 at Candlestick Park in San Francisco, California (AP Photo/Evan Pinkus)

New York Giants linebacker Mathias Kiwanuka (94) sacks San Francisco 49ers quaterback Alex Smith (11) during the NFC Championship football game on Sunday January 22, 2012 at Candlestick Park in San Francisco, California (AP Photo/Evan Pinkus)

San Francisco 49ers' Frank Gore (21) is tackled by New York Giants' Mathias Kiwanuka (94) during the second half of the NFC Championship NFL football game Sunday, Jan. 22, 2012, in San Francisco. (AP Photo/Marcio Jose Sanchez)

New York Giants linebacker Mathias Kiwanuka (94) pass rushes during an NFL game against the San Francisco 49ers on Sunday, Nov. 13, 2011, in San Francisco. The 49ers won the game, 27-20. (AP Photo/Greg Trott)

New York Giants' Mathias Kiwanuka (94) makes a tackle on Miami Dolphins' Reggie Bush (22) during the second quarter of an NFL football game Sunday, Oct. 30, 2011 in East Rutherford, N.J. (AP Photo/Julio Cortez)

New Orleans Saints running back Pierre Thomas (23) is stopped by New York Giants outside linebacker Mathias Kiwanuka (94) during the fourth quarter of an NFL football game in New Orleans, Monday, Nov. 28, 2011. (AP Photo/Bill Feig)

New York Giants linebacker Mathias Kiwanuka (94) pass rushes during an NFL game against the San Francisco 49ers on Sunday, Nov. 13, 2011, in San Francisco. The 49ers won the game, 27-20. (AP Photo/Greg Trott)

New York Giants linebacker Mathias Kiwanuka (94) looks to make a tackle during an NFL football game against the Philadelphia Eagles on Sunday September 24, 2011 at Lincoln Financial Field in Philadelphia, Pennsylvania (AP Photo/Evan Pinkus)

New York Giants linebacker Mathias Kiwanuka (94) waits for the snap during an NFL game against the San Francisco 49ers on Sunday, Nov. 13, 2011, in San Francisco. The 49ers won the game, 27-20. (AP Photo/Greg Trott)

New York Giants linebacker Mathias Kiwanuka (94) during an NFL football game against the Buffalo Bills on Sunday October 16th, 2011 at MetLife Stadium in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

Miami Dolphins' running back Reggie Bush, left, is tackled by New York Giants' outside linebacker Mathias Kiwanuka during the second quarter of an NFL football game Sunday, Oct. 30, 2011 in East Rutherford, N.J. (AP Photo/Bill Kostroun)

New York Giants defensive end Mathias Kiwanuka (94) pursues the ball carrier during a NFL football game against the Philadelphia Eagles, Sunday, September 25, 2011 in Philadelphia. The Giants won the game 29-16. (AP Photo/Paul Jasienski)

New York Giants defensive end Mathias Kiwanuka (94) celebrates a sack against the Carolina Panthers in a week 1 NFL football game at the New Meadowlands Stadium in East Rutherford, New Jersey on Sunday September 12, 2010 (AP Photo/Evan Pinkus)

Buffalo Bills quarterback Ryan Fitzpatrick, bottom, reacts after being sacked by New York Giants outside linebacker Mathias Kiwanuka (94) during the second quarter of an NFL football game on Sunday, Oct. 16, 2011, in East Rutherford, N.J. (AP Photo/Julio Cortez)

New York Giants outside linebacker Mathias Kiwanuka (94) runs down field during the NFL week 2 football game against the St. Louis Rams on Monday, September 19, 2011 in East Rutherford, New Jersey. The Giants won the game 28-16. (AP Photo/Paul Spinelli)

New York Giants defensive end Mathias Kiwanuka (94) ones up in a three-point stance during an NFL game against the Seattle Seahawks on Sunday, November 9, 2014. The Seahawks defeated the New York Giants 38-17 in Week 10. (AP Photo/Kevin Terrell)

New York Giants outside linebacker Mathias Kiwanuka tackles Arizona Cardinals tight end Rob Housler (84) during the first half of an NFL football game, Sunday, Oct. 2, 2011, in Glendale, Ariz. (AP Photo/Paul Connors)

New York Giants defensive end Mathias Kiwanuka (94) strips Oakland Raiders quaterback JaMarcus Russell (2) during a NFL football game at Giants Stadium in East Rutherford, New Jersey on Sunday October 11, 2009 (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka, left, reacts during the first quarter of an NFL football game at New Meadowlands Stadium Sunday, Sept. 26, 2010 in East Rutherford, N.J. (AP Photo/Bill Kostroun)

New York Giants defensive end Mathias Kiwanuka (94) reacts after sacking Tennessee Titans quarterback Vince Young during the first quarter of an NFL football game as Titans' Jake Scott (73) looks on at New Meadowlands Stadium, Sunday, Sept. 26, 2010, in East Rutherford, N.J. (AP Photo/Seth Wenig)

Carolina Panthers' Matt Moore (3) is sacked by New York Giants defensive end Mathias Kiwanuka during the fourth quarter of an NFL football game at New Meadowlands Stadium in East Rutherford, N.J., Sunday, Sept. 12, 2010. The Giants won the game 31-18. (AP Photo/Bill Kostroun)

New York Giants linebacker Mathias Kiwanuka (94) runs out onto the field with teammates before the start of an NFL football game against the Atlanta Falcons, Sunday, Nov. 22, 2009, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Dallas Cowboys running back Marion Barber (24) fumbles the ball on a tackle by New York Giants linebacker Mathias Kiwanuka (94) in the second quarter of their NFL football game at Giants Stadium in East Rutherford, N.J., Sunday, Dec. 6, 2009. The Giants recovered the ball. The Giants won the game 31-24 (AP Photo/Bill Kostroun)

New York Giants defensive end Mathias Kiwanuka (94) sacks Arizona Cardinals quaterback Kurt Warner (13) during a NFL football game at Giants Stadium in East Rutherford, New Jersey on Sunday October 25, 2009 (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) sacks and causes a fumble of Oakland Raiders quarterback Terrelle Pryor (2) during a week 10 football game on November 10, 2013 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka (94) splits a double team during a week 12 football game against the Dallas Cowboys on November 24, 2013 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka, left, sacks Baltimore Ravens quarterback Joe Flacco during the fourth quarter of an NFL football game Sunday, Nov. 16, 2008 at Giants Stadium in East Rutherford, N.J. The Giants beat the Ravens 30-10. (AP Photo/Bill Kostroun)

New York Giants defensive end Mathias Kiwanuka (97) breaks up a pass intended for San Francisco 49ers tight end Vernon Davis (85) as 49ers offensive tackle Joe Staley (74) collides with Kiwanuka in the third quarter of their NFL football game at Giants Stadium in East Rutherford, N.J., Sunday, Oct. 21, 2007. The Giants defeated San Francisco 33-15. (AP Photo/Kathy Willens)

Mathias Kiwanuka of the New York Giants rushes in during a 41-13 win over the St. Louis Rams on September 14, 2008 at the Edward Jones Dome in St. Louis, Mo. (AP Photo/G. Newman Lowrance)

San Francisco 49ers quarterback J.T. O'Sullivan (14) dives for a loose ball after fumbling it while handing off to running back Frank Gore (21) as New York Giants defensive end Mathias Kiwanuka (97) makes the tackle in the fourth quarter of an NFL football game at Giants Stadium in East Rutherford, N.J., Sunday, Oct. 19, 2008. The play was ruled a sack for 8 yards, but resulted in a safety after 49ers wide receiver Josh Morgan kicked the ball through the end zone. (AP Photo/Kathy Willens)

New York Giants linebacker Mathias Kiwanuka (94) wraps up New York Jets running back Shonn Greene (23) during an NFL football game on Saturday December 24, 2011 at MetLife Stadium in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

New York Giants defensive end Mathias Kiwanuka during pre-game warmups of an NFL football game against the San Francisco 49ers Sunday, Oct. 19, 2008 at Giants Stadium in East Rutherford, N.J. (AP Photo/Bill Kostroun)

New York Giants outside linebacker Mathias Kiwanuka (94) celebrates after a third quarter sack forces a Seattle Seahawks punt during the NFL week 5 football game against the Seattle Seahawks on Sunday, October 9, 2011 in East Rutherford, New Jersey. The Seahawks won the game 36-25. (AP Photo/Paul Spinelli)

New York Giants defensive end Mathias Kiwanuka (94) during a week 10 football game against the Oakland Raiders on November 10, 2013 in East Rutherford, New Jersey (AP Photo/Evan Pinkus)

Washington Redskins' wide receiver Antwaan Randle El, (82) is tackled by New York Giants' Mathias Kiwanuka, right, and Kawika Mitchell, left, during the fourth quarter of an NFL foofball game at Fedex Field in Landover, Md., Sunday, Sep. 23, 2007. Giants won, 24-17. (AP Photo/Manuel Balce Ceneta)

New Orleans Saints quarterback Drew Brees (9) scrambles for three yards before being tackled by New York Giants' Mathias Kiwanuka, right, and Fred Robbins during second quarter NFL football Sunday, Dec. 24, 2006 at Giants Stadium in East Rutherford, N.J. The Saints won 30-7. (AP Photo/Bill Kostroun)