Wladimir Klitschko remains on course to fight Lennox Lewis after the Ukranian retained his WBO heavyweight title against Jameel McCline in Las Vegas.
Klitschko dropped McCline late in the 10th round and won the fight when the American's corner refused to allow him to continue.
Klitschko is regarded as the biggest challenge remaining for Britain's WBC and IBF world champion Lewis, who has announced a three-fight plan - taking on Klitschko's brother, Vitali, in March, and Mike Tyson in a rematch before a unification showdown with Klitschko, the 1996 Olympic gold medallist.
Filed by James Boylan.