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 Klitschko rebounded to take round four in which both fighters appeared to be fatigued. In round five, Lewis landed several consecutive hard punches to Klitschko's ribs with his right hand while in a clinch with Klitschko, with HBO commentators disagreeing on the legality of the punches. By the time round five had ended, the condition of Klitschko's eye had grown worse, with the corner camera broadcasting the severe open wound, but he was nevertheless allowed to continue into round six. Lewis took advantage of Klitschko's impaired vision to land a monstrous uppercut in the sixth round. By now both fighters