BOXINGMike Tyson: Former heavyweight champ through the yearsUSA TODAYMike Tyson in 1986.Offside Sports-US PRESSWIREMike Tyson before his heavyweight fight with Donovan Ruddock in 1991. Tyson defeated Ruddock by TKO in the seventh round.MPS-US PRESSWIRETyson wears the WBC title belt after defeating Frank Bruno in 1996.Offside Sports-US PRESSWIRETyson on the sideline before a Jaguars game last season.Douglas DeFelice, USA TODAY SportsMike Tyson swings at Lennox Lewis during the first round of their heavyweight championship bout in 2002.JEFF HAYNES, AFPMike Tyson hit the big screen with his role in "The Hangover", where he joined Ed Helms, left, Zach Galifianakis and Bradley Coopers.Frank Masi, Warner Bros. Pictures