WBA/IBF/WBO/IBO heavyweight champion Wladimir Klitschko (60-3, 51 KOs) scored a brutal sixth round KO over previously unbeaten Francesco Pianeta (28-1-1, 15 KOs) on Saturday night at the SAP Arena in Mannheim, Germany. Klitscho shook Pianeta with a right hand early in round one. More big power shots landed by Klitschko in rounds two and three. Klitschko floored Pianata with a right hand in round four. A left hand put Pianeta down in the fifth. The end came in round six when Klitschko put Pianeta on the deck again. Time was 2:52.