Wladimir Klitschko's nine-and-a-half year reign as heavyweight boxing champion has ended after a shock defeat to Britain's Tyson Fury by unanimous decision.
Fury, 27, outpunched a tired-looking Klitschko, 39, over 12 rounds in front of a crowd of about 50,000 at Dusseldorf's Esprit Arena on Saturday.
This was the fourth career loss, and first in 11 years, for Klitschko, who demanded a rematch minutes after losing his four world titles.
"There will be a rematch," the Ukrainian said in a ringside interview. "It is still early and I have to process things but there will definitely be a rematch.
"I was well prepared for this fight but he was quick for his height."
Undefeated Fury, who extended his record to 25-0, now has the WBA, WBO, and IBF belts.
"It's something I've been working on for my whole life," Fury said. "I'm bred to be a fighter."
The three judges gave Fury a unanimous points decision after 12 rounds.
Vitali Klitschko, Wladimir's brother and also a former heavyweight champion, said that the Ukrainian "deserves a rematch."
"It is up to him to decide what he wants to do. He has to analyse things. He will come back stronger after this defeat. He always does."