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 and was forced to only use his right. The injury was believed to have happened in the second or third round. Klitschko's trainer, Fritz Zdunek, believes this is the same kind of injury Vitali suffered in his fight with Byrd. At the post-fight press conference, a brawl ensued between Haye and Chisora. After the altercation, Chisora challenged Haye to a fight in the ring and said, "I am going to shoot David Haye." Chisora was later arrested at a German airport along with his coach, Don Charles. His comments and actions were later condemned by Frank Warren, his promoter, and