BA/IBF/WBO/IBO heavyweight champion Wladimir Klitschko (62-3, 52 KOs) knocks out Alex Leapai to retain his WBO crown in the 5th RD. The world heavyweight champion, Vladimir Klitschko, easily retained his WBO crown when he knocked out Australia's Alex Leapai in the fifth round on Saturday in an overwhelmingly one-sided bout. Klitschko dropped Leapai with a jab in round one. The fight was one sided with Klitschko destroying Leapai. Wlad dropped Leapai twice in round five to end it. Time was 2:05. Klitschko outlanded Leapai 147-10. It was Klitschko’s sixteenth consecutive successful defense.