George Foreman defenses were made before Foreman's first professional loss to Muhammad Ali in "The Rumble in the Jungle" in 1974. Unable to secure another title opportunity, Foreman retired after a loss to Jimmy Young in 1977. Following what he referred to as a religious epiphany, Foreman became an ordained Christian minister. Ten years later he announced a comeback and, in 1994 at age 45, he regained a portion of the heavyweight championship by knocking out 27-year-old Michael Moorer to win the unified WBA, IBF, and lineal titles. Foreman remains the oldest world heavyweight champion in history, and the second oldest in
The Rumble in the Jungle by Larry Holmes in 1980 and Trevor Berbick in 1981. Despite repeatedly calling Ali out, Foreman was unable to secure a rematch with the champion before Foreman abruptly decided to retire after a loss to Jimmy Young in 1977. Ali did not hurry to set up a rematch, making title defenses against unheralded opponents such as Jean Pierre Coopman and Richard Dunn. However, he would repeatedly state that his rematch with Foreman was one of the major fights he wanted to get to before retiring. Foreman later made an unlikely comeback, culminating in his regaining the world heavyweight championship at