Foreman and Tyson never fought each other, but they both held world heavyweight titles more than once. Foreman first became champion in 1973 when he knocked out Joe Frazier. He lost the title to Ali in a legendary fight against Muhammad Ali in the 'Rumble in the Jungle.' After that, Foreman retired in 1977 but came back ten years later. In 1994, at 46 years old, he became the oldest heavyweight champion ever when he knocked out Michael Moorer.
Tyson's career was just as impressive. He became the youngest heavyweight champion ever in 1986 at just 20 years old. In the late 1980s, he became the undisputed champion after beating Tony Tucker, Larry Holmes, and Michael Spinks. Tyson lost to Buster Douglas in 1990 but became champion again in 1996 when he stopped Frank Bruno.
Both men agree that Ali was in a league of his own. Foreman said:
"Once in the ring with the great Ali was enough for me. If I'd changed my approach back then he'd [have] another plan. Nothing beats some fighters but time."
Tyson was even more emphatic about Ali's skills:
"There is no man like him, there just isn't. Everything we have he supersedes us in. He was an animal, he looked more like a model than a boxer. He's like a Tyrannosaurus Rex with a pretty face, he's just mean and evil, he'll take you to deep waters and drown you. He's very special. The best. Nobody beats Ali. I can't beat that man, hell no. No way."
Before Ali passed away in 2016, he made a prediction about who would win between Foreman and Tyson. The fact that both these great champions admit Ali would beat them shows just how special Ali was in the ring.