New York Giants linebacker Mathias Kiwanuka (94), left, and Dallas Cowboys offensive tackle Flozell Adams (76) get in a scuffle in the...

...Rutherford, NJ, USA; Dallas Cowboys running back Marion Barber (24) fumbles as New York Giants linebacker Mathias Kiwanuka (94) hits him during the first half at Giants Stadium

Oct 11, 2009; East Rutherford, NJ, USA; New York Giants linebacker Mathias Kiwanuka (94) closes in on Oakland Raiders quarterback JaMarcus Russell (2) during the first half at Giants...

New York Giants linebacker Mathias Kiwanuka, right, strips Oakland Raiders quarterback JaMarcus Russell of the ball for a fumble during the third...

TAMPA, FL - SEPTEMBER 27: Defensive end Mathias Kiwanuka #94 of the New York Giants celebrates with defensive end Justin Tuck #91 against the Tampa...

...Cowboys quarterback Tony Romo (9) is sacked for a safety by New York Giants defensive end Mathias Kiwanuka (97) and New York Giants defensive end Justin Tuck (91) during the fourth quarter of an...

New York Giants defensive end Mathias Kiwanuka in action during NFL football training camp in Albany, N.Y., Tuesday, Aug. 4, 2009

...New York Giants safety Michael Johnson (20) for a 13-yard loss as Giants defensive tackle Mathias Kiwanuka (97) adds pressure during the first quarter of an NFL football game in Minneapolis, Sunday, Dec...

...Cowboys quarterback Tony Romo (9) is sacked for a safety by New York Giants defensive end Mathias Kiwanuka (97) and New York Giants defensive end Justin Tuck (91) during the fourth quarter of an...

...AZ, USA; Arizona Cardinals quarterback Kurt Warner is hit by New York Giants defensive end (97) Mathias Kiwanuka as he releases the ball in the second half at University of Phoenix Stadium. New York...

02 November 2008 - Mathias Kiwanuka (97) of the New York Giants sacks Brooks Bollinger (5) of the Dallas Cowboys during the...

Nov 2, 2008; E. Rutherford, NJ, USA: New York Giants linebacker Mathias Kiwanuka sacks Dallas Cowboys quarterback Brooks Bollinger during the second half between the New York Giants and...

Sep 21, 2008; East Rutherford, NJ, USA; New York Giants defensive end Mathias Kiwanuka (97) during the third quarter of the game against the Cincinnati Bengals at Giants Stadium. The...

New England Patriots vs New York Giants EAST RUTHERFORD, NJ - AUGUST 28: Defensive end Mathias Kiwanuka #97 of the New York Giants looks to make a tackle against the New England Patriots...

Cleveland Browns v New York Giants EAST RUTHERFORD, NJ - AUGUST 18: Mathias Kiwanuka #97 of the New York Giants tackles Charles Ali #41 of the Cleveland Browns on August...