Calvin Johnson: Detroit Lions WR retires - Sports Illustrated
Report: Calvin Johnson told Lions he planned to retire
Calvin Johnson tells Detroit Lions 2015/16 NFL season was his last
NFL Notes: Report: Johnson told coach he will retire - Duluth News
SportsCenter - The Detroit Lions make it official: Calvin Johnson
Calvin's retirement gives Lions $11M more for 2016
Calvin Johnson's latest explanation of his retirement will make
Detroit Lions' Calvin Johnson Has Retired
Detroit Lions: Calvin Johnson Officially Retires from NFL
Calvin Johnson Says Playing for Lions Factored Into His Decision
Lions wide receiver Calvin Johnson announces retirement after nine
Calvin Johnson admits he retired partly because the Lions were
Detroit's Calvin Johnson contemplating retirement - Windy City