When Calvin Johnson retired, he left a Hall of Fame legacy that hopefully won't be forgotten
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Lions' Calvin Johnson makes 'difficult decision' to retire
Calvin Johnson's Retirement Reveals Pain Impossible to Ignore for NFL Players, News, Scores, Highlights, Stats, and Rumors
Freep] Calvin Johnson: Detroit Lions' offer shows team 'not serious' about mending fences : r/nfl
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Lions' Calvin Johnson makes 'difficult decision' to retire
Calvin Johnson makes Pro Football Hall of Fame on first try amid star-studded class