Tony Bellew humbled his bitter British rival David Haye with a shock 11th round win in a non-title heavyweight fight at the O2 in London on Saturday.
Former WBA world heavyweight champion Haye suffered a suspected snapped Achilles tendon in the sixth round, leaving him an easy target as he stumbled and limped around the ring for second half of the fight.
Unable to move away from Bellew's blows, Haye got up from a count in the seventh round and bravely battled on until he was knocked out of the ring in the 11th round.
As he was climbing back into the ring, Haye's trainer Shane McGuigan threw in the towel to the stop the fight.
Haye afterwards called for a rematch after a third career loss in his 31st fight which has shattered his hopes of facing one of the world heavyweight champions in the next 12 months.
Bellew, the reigning WBC world cruiserweight champion who stepped up a division, enjoyed silencing Haye's pre-fight taunts and claimed: "I'm the most valuable heavyweight in the world outside the world champions."
Bellew said he would be willing to meet Haye again at Goodison Park, home of Everton football club.
Among many insults which included the threat to "hospitalise" Bellew, Haye said he would quickly knock out his opponent in the non-title heavyweight bout.
Few predicted "Bomber" Bellew would pull off an upset and bookmakers made him 4-1 to win, with Haye a long odds-on betting favourite at 1/6 on.
Bellew now wants to face WBC heavyweight champion Deontay Wilder, and says that he doesn't want to fight stablemate Anthony Joshua, who owns the IBF belt.
"You know what I want next? Deontay Wilder, the Bronze Bomber, I want you boy. I'm just thinking I maybe I have one more night left," said Bellew. "I don't want to fight him (Joshua) I look up to him, he's a good man."