Lions' Calvin Johnson plans to retire, according to reports - Acme Packing Company
MLive.com - Here's what Barry Sanders has to say about Calvin Johnson, Jr.'s retirement from the Detroit Lions today.
Lions wide receiver Calvin Johnson announces retirement after nine seasons - Washington Times
Calvin Johnson will retire from the NFL - Pride Of Detroit
With Johnson's likely retirement, search for new No. 1 WR begins, PFF News & Analysis
Calvin Johnson Announces Retirement
Calvin Johnson reflects on Hall of Fame career, has no regrets about retiring
The Detroit Lions made a major mistake not trading Calvin Johnson - Pride Of Detroit
Calvin Johnson's First Nickname Was a Lot Less Cool Than Megatron
Calvin Johnson on coming out of retirement: 'It's not happening'