Holyfield, who will be 45 years old in October, is a 1984 Olympic bronze medalist who became the undisputed world cruiserweight and heavyweight champion as a pro. After conquering all three champions in what was then the 190-pound division, Holyfield defeated Buster Douglas in 1990 and Riddick Bowe in 1993 for his first two world heavyweight championships. His career was considered over after a 1994 loss to Michael Moorer but, ever the warrior, Holyfield returned to defeat Mike Tyson and Moorer in 1997 in his third heavyweight reign. A 2000 win over John Ruiz gave him a vacant WBA belt. Lennox Lewis was considered the true champion back in 2000, so Holyfield is truthfully listed as four-time champion, although three-time champion is probably more accurate. Either way, he is one of boxing's all-time greats and one of the fiercest competitors in the history of sports. The earlier part of this decade was difficult for Holyfield, who currently has a career record of 42-8-2. Holyfield was once again considered finished as a legitimate boxer after a 2004 loss to Larry Donald but he returned to the ring wars in 2006. Overcoming a large amount of skepticism, Holyfield has produced wins over Jeremy Bates, Fres Oquendo, Vinnie Maddalone and Lou Savarese, and amazingly, he looked better and better each time out.