Manute Bol
Bol wasn’t the best NBA player ever but he remains an iconic figure because of his stature. He is the joint-tallest NBA star ever and this made him a cult hero. Bol spent a decade in the league as he bounced around with different teams. However, he also infamously competed in a boxing exhibition (via Bleacher Report).

His opponent was the equally memorable, William ‘The Refrigerator’ Perry. Perry was a massive figure, even by the standards of NFL athletes. In the end, the fight didn’t go well for Bol as he suffered a savage knockout. Many professional combat sports athletes say that it’s impossible to play fight.