DUESSELDORF, Germany Underdog Tyson Fury caused a huge boxing upset on Saturday, stunning Wladimir Klitschko with a points victory to snatch the champion's four titles and become the first Briton to hold a world heavyweight crown since 2011.
Undefeated Fury, who improved his record to 25-0 and now has the WBA, WBO, IBF and IBO belts, was never troubled by the 39-year-old Ukrainian who suffered his first loss in 11 years and has already demanded a rematch.
He kept landing left-right combinations with Klitschko, not used to fighting taller men than him, struggling with Fury's reach.
Klitschko managed to get close with a few good left jabs in the second round but Fury landed a powerful right, pushing the Ukrainian back.
Fury, constantly changing between southpaw and orthodox stance, kept chipping away at Klitschko's defences with his combinations and by the eighth round the champion was bleeding from a cheek wound.
Fury, who shed 32 kilos in five months to get in shape for the fight, landed a bruising left uppercut in the ninth that wounded Klitschko's right eye.
Sensing the titles slipping away, Klitschko threw everything he had in the final round in search for a knockout but ended up losing on all three of the judges' scorecards, putting an end to his winning run that stretched back to 2004.
"There will be a rematch," Klitschko said. "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. I never believed he would do it but he did. I was lacking speed and he was quick. I just could not find the right distance. His reach bothered me. I tried it but it just did not happen."