Michael Gerard Tyson (born June 30, 1966) is a retired American boxer. He won two world heavyweight boxing championships during his career and remains the youngest man ever ever to win the title. He was considered one of the best heavyweight boxers during the latter part of the 1980's and is still one of the most recognizable sportspeople in the world.Nicknamed "Iron Mike Tyson", "Kid Dynamite" and "The Baddest Man on the Planet" Tyson adopted the Muslim name Malik Abdul Aziz, after his conversion to Islam while in prison for his rape conviction. For his behavior both in and out of the ring, ESPN has ranked Tyson as the #1 Most Outrageous Character in modern sports history as determined by a panel of experts and an internet poll.He was trained by Cus D'Amato in the early part of his career, Tyson unified the belts in the splintered heavyweight division in the late 1980s and won many of his fights by knockout. He knocked out his first 19 professional opponents no later than the sixth round, and 13 of them in the first. He was the undisputed heavyweight champion for over two years before losing in a to Buster Douglas in 1990.In 1992 he was convicted of raping a beauty pageant contestant, and after being released from prison in 1995, he engaged in a series of comeback fights. In 1997, he bit off a portion of Evander Holyfield's ear. He fought for a championship again at 35, losing by knockout to Lennox Lewis in 2002. Tyson retired from competitive boxing in 2005.Since retiring he has engaged in a series of exhibition bouts in a tour across the U.S to pay his numerous debts. He declared bankruptcy in 2003, despite receiving over US$30 million for several of his fights and $300 million over his career.