Ali weighed in with his feelings in a short statement via CBS Sports, saying, “The world has lost a great champion. I will always remember Joe with respect and admiration. … My sympathy goes out to his family and loved ones.”
But his historic opponent was far from the only one who shared his feelings about “Smokin’ Joe.”
Read reactions on Twitter below, via Storify.
[View the story "Sports World Reacts to Joe Frazier's Death" on Storify]