Klitschko brothers 5 months & 13 days. Vitali retained the WBC Heavyweight Championship until 15 December 2013, relinquishing his belt in pursuit of his political aspirations in his native Ukraine. The Klitschko brothers jointly run the professional boxing promotion companies ""K2 Promotions"" and ""K2 East Promotions"", as well as the ""Klitschko Brothers Fund"", a charity organization. They appear together on German TV shows and commercials, have a website shared between them, and support each other's training and fights. After Vitali's retirement, Wladimir continued to reign as champion & successfully defend all remaining title belts except for the WBC belt. He eventually lost
Vitali Klitschko After Wladimir Klitschko had to cancel his fight with Jean-Marc Mormeck, it was thought that Vitali was likely to fight on 25 February 2012. Sources in Germany reported that he was likely to fight British contender Dereck Chisora on 18 February 2012 in Olympiahalle, Munich, Bayern. It was confirmed on 12 December 2011 that Dereck Chisora would be Vitali Klitschko's next opponent. Vitali Klitschko retained his WBC Championship belt unanimously in a dominant display in Munich. The fight was fought against a backdrop of antagonism displayed by the contender Dereck Chisora at the weigh in. Chisora slapped Klitschko across the