In his first three years with the Giants, Herzlich played in 43 games with six starts. He has 57 tackles (44 solo) on defense and 33 special teams tackles.
In 2013, Herzlich played in all 16 games for the second year in a row, with two starts (at Carolina and Kansas City). He had a career-high 32 tackles (26 solo) and a team-leading 14 special teams tackles (12 solo).
Herzlich joined the Giants in 2011 as a rookie free agent from Boston College.