Unheralded Briton Danny Williams has knocked out Mike Tyson in the fourth round of their heavyweight fight to produced one of the biggest upsets in the history of boxing.
Tyson dominated the opening round on Friday night but Williams, rated a 9-1 underdog before the bout, hit back with several crunching blows and slowly began to take control against the 38-year-old American.
Williams, 31, landed with a stream of thunderous rights in the fourth before sending Tyson to the canvas after two minutes 51 seconds.