Ukrainian champion Oleksandr Usyk has knocked out Britain's Daniel Dubois in the ninth round to retain his WBA, WBO and IBF heavyweight world titles.
Usyk, fighting in front of a partisan 40,000-strong crowd in Poland, knocked Dubois down at the end of round eight.
In the next round, a tiring Dubois was sent to the canvas again and failed to beat the count.
Usyk took almost four minutes to recover in round five after being hit with a punch that the referee deemed to be low.
He insisted he should be the heavyweight world champion after being "cheated out".
[Source: BBC Sports]
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