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Lions edge Dolphins 20-16 with last-minute TD

Detroit Lions wide receiver Calvin Johnson (81), defended by Miami Dolphins cornerback Brent Grimes (21), catches 49-yard pass for a touchdown during the first half of an NFL football game in Detroit, Sunday, Nov. 9, 2014. (AP Photo/Rick Osentoski)

Odd and premature sports retirements

Yahoo Sports

The Detroit Lions announced Tuesday that WR Calvin Johnson has retired. Johnson, who walks away at age 30, signed a 7-year contract extension in 2012 worth $113.5 million. Here's a look back at some other odd, abrupt or premature retirements by star athletes over the years.