Klitschko sees off foe to retain world titles

Ukrainian champ floors Russian five times on way to victory

World heavyweight champion Wladimir Klitschko retained his WBA, IBF, WBO and IBO titles with a unanimous points win over Russia's Alexander Povetkin on Saturday in Moscow.

The Ukrainian champion enjoyed an emphatic victory in his 24th world title fight having put Povetkin on the canvas five times, three times in the seventh round alone.