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
Lennox Lewis vs. Vitali Klitschko looked exhausted, often staggering after coming together. Between rounds six and seven, it was determined by the ringside doctor that the damage to Klitschko's eye had become too severe and the fight was stopped. Because Klitschko's injury was a result of punches from Lewis, Lewis was named the winner of the fight by technical knockout. Klitschko was ahead 58-56 on the scorecards with two judges giving Lewis only rounds three and six and the other rounds five and six. The crowd proceeded to boo Lewis, and cheer Klitschko, presumably unhappy with the stoppage. Due to the controversial ending, there was