Joe Frazier, Champion and Competitor

Joe Frazier
AP

Foreman Challenges the Champion
Frazier would not be left unchallenged. In fact, he lasted only four more fights as heavyweight champion before he was challenged by George Foreman in a 1973 fight in Kingston, Jamaica. Foreman sent Frazier to the mat three times in the first round, and another three times in the second, to claim the title of the world's top-ranked heavyweight boxer. In this photo, Frazier takes a jab from Foreman in Jamaica on Jan. 22, 1973.

Get the Latest Photos from Time.com
Get TIME photos and pictures of the week delivered directly to your inbox.