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
Wladimir Klitschko vs. Bryant Jennings Wladimir Klitschko vs. Bryant Jennings Wladimir Klitschko vs. Bryant Jennings, billed as The Champion Returns, was a heavyweight fight for the WBA (Super), WBO, IBF, IBO, "The Ring" and lineal heavyweight titles. The fight took place on April 25, 2015 at Madison Square Garden in New York City. This was the first time Klitschko had fought in the United States since 2008 and first time the lineal world heavyweight title was fought for in the United States since Lennox Lewis defeated Vitali Klitschko in 2003. His last fight in the United States was a title unification against Sultan Ibragimov. The