LONDON, Feb 26: Britain’s Olympic silver medallist Amir Khan stretched his professional record to six from six on Saturday when the teenager from Bolton stopped Jackson Williams in the third round.

Amir had floored the part time teacher three times before referee Dave Parris stepped in to put an end to the one-sided bout after two minutes 18 seconds.

The 19-year-old had said before the fight that he would be quite happy to get the experience of going the six-round distance behind him.

But Amir fulfilled promoter Frank Warren’s belief that if he connects with his power punches he is capable of stopping anyone.

Amir set the pace, opening up with fast two-handed combinations — but just before the bell to end the first round, Williams retaliated with a short left hook to the head.

That was just about his only serious success.

Amir was simply too fast and too powerful for him - and Williams, boxing behind a high guard, was under increasing pressure.

With seconds remaining of round two, a short right through his glove forced ‘Action’ Jackson to touch down — and although he jumped up immediately, blood was streaming from his nose.

A glancing left followed by a right forced Williams to the canvas again at the start of the third round — and although he again got up straightaway and tried to fight back, the end was not far away.

Williams went down again from a left to the body - and with Amir now landing heavy blows without reply, referee Parris called a halt.

Williams, chosen to test the talented young star because of his respectable 12 wins from his 15 previous fights, at least did better than the amateurish-looking Vitali Martynov.

The Belarussian arrived with a seemingly useful-looking record of 10 wins from 11 bouts only to fold after just 75 seconds of Khan’s previous fight in Nottingham last month.

Williams, a charity runner who plans to cover 3,300 miles across America next year, did decide to try and fight rather than run.—Agencies