Chicago Bears' nemesis Calvin Johnson confirms he's done with football
Calvin Johnson, National Football League, News, Scores, Highlights, Stats, and Rumors
Detroit Lions' Calvin Johnson is retiring and is 'at peace with it'
Lions wide receiver Calvin Johnson retires from NFL
Calvin Johnson brings an end to nine-year career with Detroit Lions, NFL News
Detroit Lions: Calvin Makes Statement About Decision to Retire
NFL notes: Once again, Lions lose a star in his prime - The Boston Globe
Detroit Lions Memes - A Megatron Prayer
It's true: Lions' Megatron Calvin Johnson will retire from football at age 30
Lions' Calvin Johnson makes 'difficult decision' to retire
Matt Stafford knew 'the NFL was wearing on' Calvin Johnson
Calvin Johnson officially retires from NFL
Calvin Johnson opens up about his early retirement, Aaron Rodgers' recruitment pitch, ongoing rift with Lions
Lions president: Calvin Johnson remains uncertain on retirement - Sports Illustrated
Calvin Johnson: 'I would've went anywhere' to play before retiring