Sep 18, 2016 NFL Inguinal Groin Strain Grade 2 Foster missed 3 games. He played his last NFL game in Week 7 and retired shortly thereafter.

Oct 25, 2015 NFL Pedal Achilles Tear Grade 3 Foster underwent surgery and missed the final 9 games.

Aug 4, 2015 NFL Inguinal Groin Tear Grade 3 Foster tore a groin muscle off the bone in his first padded practice. He needed surgery and was placed on IR/designated for return.

Nov 2, 2014 NFL Inguinal Groin Strain Grade 2 Foster hurt his groin in Week 9. He missed 2 games as a result.

Sep 14, 2014 NFL Thigh Hamstring Sprain/Pull Unspecified Grade 1 Foster pulled his hamstring in Week 2 and missed the following game.

Jul 29, 2014 NFL Thigh Hamstring Sprain/Pull Unspecified Grade 1 Foster pulled his hamstring in the first week of training camp. He missed most of camp and the entire preseason.

Nov 3, 2013 NFL Back Vertebral Disc Hernia Foster was placed on IR and had surgery on November 14. Foster underwent a microscopic lumbar discectomy.

Oct 20, 2013 NFL Thigh Hamstring Sprain/Pull Unspecified Grade 1 Foster returned after a 1-game absence, only to suffer a back injury vs. the Colts.

May 22, 2013 NFL Leg Calf Strain Foster was on the PUP list until August 21.

Dec 23, 2012 NFL Chest Heart Arrhythmia Foster missed just 1 quarter of action as a precaution. He met with a cardiologist on December 24 and declared that "everything is back to normal."

Sep 18, 2011 NFL Thigh Hamstring Sprain/Pull Unspecified Grade 1 Foster again hurt his left hamstring, this time in Week 2.

Aug 27, 2011 NFL Thigh Hamstring Sprain/Pull Unspecified Grade 1 Foster re-aggravated his left hamstring in Week 3 of the preseason. He missed 1 regular season game.

Aug 5, 2011 NFL Thigh Hamstring Sprain/Pull Unspecified Grade 1 Foster was hurt on day 1 of training camp.