Vitali Klitschko will defend his title on Saturday On September 26, the World Boxing Council (WBC) heavyweight champion, 38-year-old Ukrainian Vitali Klitschko, nicknamed Doctor Steel Hammer, will defend his title for the fourth time. In the fight, which will take place in Los Angeles, at the famous Staples Center, his opponent will be 28-year-old American Chris Arreola, who currently has a brilliant track record: 27 fights - 27 victories, 24 of which were won by knockout.