Saul Alvarez knocked out Great Britain's Amir Khan in the sixth round to retain his WBC middleweight title in Las Vegas last night.
Twenty-nine-year Khan, who jumped two weight divisions to challenge Alvarez, actually dominated the opening five rounds of the contest.
However, with 23 seconds of the sixth round remaining, the Englishman left himself exposed and the champion punished the error with an overhand right to the chin.
It was a shot that rendered Khan unconscious as he hit the canvas and was subsequently counted out.
It means that Mexico's Alvarez now has 47 wins to his name, 33 of which have come via knockout.
After the fight, Khan took to Twitter to reassure his supporters that he had suffered no ill effects.
