Calvin Johnson - Wikipedia
Eagles Trade Rumors: ESPN addresses the Calvin Johnson speculation - Bleeding Green Nation
Detroit Lions Football - Lions News, Scores, Stats, Rumors & More, ESPN
ESPN writer warns: Stay away from Calvin Johnson in fantasy football
NFL Notebook: Lions' Calvin Johnson retires - West Central Tribune
Ex-Lion Calvin Johnson: 'I'm not coming back'
Calvin Johnson shines for Detroit Lions in second day of training camp - ESPN - NFL Nation- ESPN
Calvin Johnson of Detroit Lions retiring from NFL after nine seasons - ESPN