NFL Notebook: Lions' Calvin Johnson retires - West Central Tribune
Vikings React to Calvin Johnson's Retirement
Calvin Johnson content in retirement, not 'treated the way I should have been' by Lions
Retired receiver Calvin Johnson explains why he'll never play in the NFL again
Actually, the Lions made Calvin Johnson pay back more than $1 million
Detroit Lions Star Wide Receiver Calvin Johnson Unexpectedly Retires
Harvard University, NFL Hall of Fame WR Calvin Johnson collaborating on cannabis research project
Lions star Calvin Johnson retires
Report: Calvin Johnson told Caldwell he's retiring
Calvin Johnson Sends Lions a Message About Future Reunion
Ex-Lions star Calvin Johnson reveals that he used to break one particular NFL rule after every game
Detroit Lions receiver Calvin 'Megatron' Johnson is retiring - Baltimore Beatdown
Lions' Calvin Johnson plans to retire, according to reports - Acme Packing Company
Report: Calvin Johnson told Lions he planned to retire