Wladimir Klitschko defended his WBA, IBF and WBO world heavyweight titles with victory over Alexander Povetkin by unanimous decision.
All three judges scored the fight 119-104 in favour of Klitschko who overwhelmed his opponent pound-for-pound.
Prior to the fight, Russia’s Povetkin maintained an unbeaten record, but was knocked down on three occasions in the seventh round.
Klitschko, who has won 61 of his 64 professional fights, has now made 15 defences in his second spell as champion.
“That was a tough bit of work, he’s a real fighter,” Klitschko said.
“I kept landing the punches, but he stayed in there.
“I believe it was a deserved win, but I think I can improve still.”
Klitschko’s punches worked well while Povetkin struggled to get close to his big opponent and was never able to build momentum.
The 37-year-old Klitschko put his challenger down on three occasions in the seventh round, although it looked like he pushed him twice.
Klitschko was docked a point for once again pushing Povetkin to the canvas in the 11th round.