Klitschko defends titles with sixth-round KO

UKRANIAN world heavyweight champion Wladimir Klitschko defended his WBA, WBO, IBF and IBO belts after he stopped Italian Francesco Pianeta with a sixth-round knock-out in Mannheim, Germany, yesterday.

Victory gave the 37-year-old Klitschko the 60th win of his career and his 51st knock-out.

Klitschko will face Russia's Alexander Povetkin in his next bout in Moscow on August 31.