FILE - In this Nov. 22, 2011 file picture Ukraine's boxer Wladimir Klitschko kneels in the rink during a training session in Going, Austria when he prepared for the WBO title fight against France's Jean-Marc Mormeck. Wladimir Klitschko's management says Monday Dec. 5, 2011 the WBO, IBF and WBA heavyweight champion has been forced to pull out of his fight against French challenger Jean-Marc Mormeck after undergoing an operation to remove a kidney stone. The fight had been scheduled for Saturday in Duesseldorf. Klitschko suffered abdominal pains at his training camp in Austria on Friday. The 35-year-old was taken to Innsbruck for initial treatment before being transferred to a Duesseldorf hospital. The stone was removed on Saturday but Klitschko returned to the hospital on Sunday before a scheduled television appearance.