Former champion and Hall of Famer, Kostya Tszyu, takes over the training duties of cruiserweight Denis Lebedev (21-1, 16 KOs), the WBO's #1 ranked cruiserweight and 2010 Russian fighter of the year. Tszyu is preparing Lebedev for the upcoming showdown with ring legend Roy Jones Jr. (54-7, 41 KOs), which is scheduled for May 21 at Dynamo Arena in Krylatskoye, Moscow, Russia.