Some of the stories about the playboy lifestyle Conteh lived are amazing So he must have been a natural athlete.
I heard he once did a somersault when he was comped 3 slabs of ribs after he ktfo'd Wilder! He was quite graceful from what I heard
Shannon the Cannon. Legendary heavyweight who is also bowling champion. Throws himself and uses his head as bowling ball. LETS GO CHAMP!
Wladimir Klitschko is the most athletic 6'6 240 lbs+ boxer ever. He does kitesurf, windsurf, swims like a pro swimmer, i've never seen a boxer as big as him doing front flips as gracefully as he does in training footage