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 the Klitschko brothers moved from Hamburg, Germany to Los Angeles. In January 2004 they notified Universum that they would not re-sign when their contracts expired in April. Universum sued the brothers, arguing that their recent injuries had triggered a clause binding them beyond April. The suit was ultimately resolved in favor of the Klitschkos in November 2009. Klitschko faced South African Corrie Sanders on 24 April 2004 for the WBC heavyweight championship and "The Ring" belts that had been vacated by Lewis. Sanders had stopped younger brother Wladimir in the second round (TKO) on 8 March 2003. Klitschko took a