How old is Evander Holyfield?

Evander Holyfield is an American former professional boxer who competed between 1984 and 2011. He reigned as the undisputed champion in the cruiserweight division in the late 1980s and at heavyweight in the early 1990s, and was the only boxer in history to win the undisputed championship in two weight classes in the "three-belt era", a feat later surpassed by Terence Crawford, Naoya Inoue and Oleksandr Usyk, who became two-weight undisputed champions in the four-belt era. Nicknamed "the Real Deal", Holyfield is the only four-time world heavyweight champion, having held the unified World Boxing Association (WBA), World Boxing Council (WBC), and International Boxing Federation (IBF) titles from 1990 to 1992, the WBA and IBF titles again from 1993 to 1994, the WBA title a third time from 1996 to 1999; the IBF title a third time from 1997 to 1999 and the WBA title for a fourth time from 2000 to 2001.