Wladimir Klitschko has retained his IBF heavyweight title by sparking Calvin Brock with a big right in the seventh round.
Klitschko started very slowly, and Brock was landing quite easily for four rounds, then Klitschko woke up in the fifth, and from then onwards, it was just a matter of time before the big man finished things.
Klitschko started very slowly, and Brock was landing quite easily for four rounds, then Klitschko woke up in the fifth, and from then onwards, it was just a matter of time before the big man finished things.