Mega-gone: Calvin Johnson retires from NFL at age 30
Understanding Lions WR Calvin Johnson's quiet retirement - Sports Illustrated
Lions' Calvin Johnson plans to retire, according to reports - Acme Packing Company
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Patrick Peterson has great message for Calvin Johnson
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Calvin Johnson Detroit Lions Nike Retired Player Vapor Untouchable Limited Throwback Jersey - Blue
Vikings React to Calvin Johnson's Retirement
Calvin Johnson elected to the Pro Football Hall of Fame
Calvin Johnson retires from NFL
Lions star Calvin Johnson retires
Calvin Johnson throws support behind 'extremely talented' Jameson Williams: 'Anything I can to do help'
NFL Notebook: Lions' Calvin Johnson retires - West Central Tribune