San Francisco 49ers: Predicting Hall of Fame Chances for Patrick
A.J. Tarpley, 23, retiring from NFL because of concussions
Hanging Up His Cleats, Patrick Willis Retires
Patrick Willis Explains Decision to Retire from NFL
49ers LB Patrick Willis retiring after injury-shortened season
Patrick Willis Retirement Stuns 49ers
Patrick Willis' Shock Retirement Marks Official End of Jim
Drew Brees retires: Saints GM Mickey Loomis discusses his impact
Andrew Luck and Other Top NFL Players Who Retired Too Early
Patrick Willis Explains Decision to Retire from NFL