In 1979, Mile High Stadium played host to one of the more fascinating events of its time: an exhibition match between boxing legend Muhammad Ali and former Broncos defensive end Lyle Alzado.
Ali, who passed away Saturday evening, was past his physical peak and admitted as much at the time, going as far to acknowledge that he did no training to prepare for the 30-year-old, two-time Pro Bowl defensive end.
"I'm way overweight; I've done a little bit of runnin', but I have enough to whip any football player in the world in the ring," Ali said.