Patrick Willis says injuries are causing him to retire
Rapoport] Bucs Pro Bowl guard Ali Marpet has made the decision to retire at age 28. The Super Bowl champion started since he entered the NFL from little Hobart College and has
Patrick Willis retiring after eight seasons with 49ers
Ex-Steelers LB Jason Worilds shockingly retires
Why more NFL players will retire early like Calvin Johnson
Has there been another NFL player that was very talented that retired at an earlier age than Andrew Luck? - Quora
The NFL as it is Known is Not Sustainable - Canal Street Chronicles
Patrick Willis Explains Decision to Retire from NFL
Andrew Luck and Other Top NFL Players Who Retired Too Early, News, Scores, Highlights, Stats, and Rumors
Barry Sanders and Other Top NFL Players Who Retired Too Early, News, Scores, Highlights, Stats, and Rumors