Deontay Wilder knocks out Dominic Breazeale in first round to defend title

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Deontay Wilder produced a sensational first-round knockout of Dominic Breazeale to defend his WBC world heavyweight title in New York.

Wilder, 33, flattened his fellow American with 43 seconds of the opening round left - taking his record 41 wins and a draw from 42 bouts.

It was his 39th victory by knockout.

More to follow.