A heavyweight championship fight is probably the last place you'd expect this to happen, but it did!
"Oliver McCall (born April 21, 1965) is an American former professional boxer who competed from 1985 to 2019. A veteran of the sport for over three decades, he is best known for winning the WBC heavyweight title in 1994 by scoring an upset knockout victory over Lennox Lewis. The next year he defended the title against Larry Holmes before losing it to Frank Bruno. McCall is known for an in-ring mental breakdown during his 1997 rematch with Lewis. McCall's son, Elijah, is also a heavyweight professional boxer. McCall is known for never being knocked down in his 74-bout professional career and possessed one of the most durable chins of his time."
