Nigeria born Briton Anthony Oluwafemi Olaseni Joshua added the WBA world heavyweight title to his IBF crown after an enthralling knockout win over Wladimir Klitschko at Wembley Stadium.
Over 90,000 fans were treated to a see-saw contest wherein Joshua knocked down the former unified world champion in the fifth round, before being put down - for the first time in his 19-fight career - in the sixth.
Both men looked in danger of being stopped over two rounds which will live long in the memory, before Joshua delivered the clinical blows in the 11th.
Joshua landed a brutal uppercut which gave him the platform to send Klitschko down with an immediate flurry.
The Ukrainian stood, was dropped by a left hook again moments later, then stood again, only for referee David Fields to save him when pinned against the ropes.
At the time of the stoppage, Joshua was up 96-93 and 95-93 on two cards, with Klitschko 95-93 up on the other.
Joshua threw his arms into the air as roars rolled down the Wembley tiers.
He had come through his stiffest test to date, while Klitschko had answered questions of his own, showing he remains competitive at world level, even at 41.
The Ukrainian had knocked down Joshua in the 6th round after he was knocked down by the Brit in the previous round.
It was an epic fight.
The Nigerian-Brit afterwards spoke to BBC: "I knew it was possible to hurt him, but I am learning round by round. I'm learning under the bright lights.
"I don't come to box, I come to hurt people. With all due respect, I came to hurt him.
"At the end of the day, I figured out what I had to do and got him done.
"I'm coming back to Wembley. I'll look forward to seeing you here again.
"There's been many a time in training when we go into the 11th round and I'm tired but I know I have to keep it up because I have to go the distance.
"I showed tonight that fights are won in the gym. It gets tough and boxing isn't easy. You have to have the whole package."