Vitali Klitschko unanimously out-pointed Dereck Chisora yesterday for a 10th successive defence of his World Boxing Council (WBC) heavyweight title in a stormy clash at the Olympiahalle in Germany.
After being slapped by Briton Chisora at Saturday's weigh-in, Ukrainian Klitschko took revenge over his provocative challenger but he spent a lot of the fight on the back foot before earning scores of 118-110, 118-110 and 119-111 from the judges.
"He was very motivated. It was not easy but I saw every punch - he was slow. I am upset because I wanted to finish the fight before the 12th round," said Klitschko.
The Briton said: "The only thing that beat me tonight was experience. I don't hold back. I keep coming and I want a rematch."
Despite the wide margin of the scores, Klitschko's 40-year-old legs were made to work for every moment of the 12 rounds in a plucky effort from Chisora.