Milestones

RETIRED. MIKE TYSON, 38, volatile American boxer who in 1986 became the youngest-ever world heavyweight champion at the age of 20; after forfeiting a fight against Irishman Kevin McBride; in Washington, D.C. Tyson, who won 50 of 58 bouts44 by knockoutduring his career, earned a reputation as a brute inside and outside the ring. In 1992 he was convicted of raping a woman in Indiana and spent three years in prison. He was suspended from boxing in 1997 for a year after he bit off a piece of opponent Evander Holyfield's ear. In his final fight, Tyson threw in the towel...