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 to Klitschko in 2008, in which Peter had tried to box from the outside. He therefore employed a game-plan which involved applying constant pressure to Vitali in order to force him into a high tempo fight. Despite his best efforts, the bout became one sided very quickly. Klitschko consistently proved himself faster, sharper and much fitter than Arreola. On 12 December, Vitali defeated Kevin Johnson by unanimous decision, winning almost every round. Johnson, a skillful fighter, tried to negate Klitschko's strength with angles and head movement. Though he proved hard to hit, he failed to launch any sustained attack of