Anthony Joshua came through his first real test as a professional, knocking Dillian Whyte out in the seventh round to win the British heavyweight title.
Olympic champion Joshua, 26, came into the fight boasting 14 straight knockouts in the first three rounds.
But Whyte, 27, stood up to some huge blows and, perhaps more importantly, managed to land a few of his own.
However, Whyte was wobbled by a hook to the temple before Joshua finished the job with a savage uppercut.