The billionaire owner of Newcastle United has won £1.3million on the single spin of a roulette wheel.

High-rolling Mike Ashley collected the windfall after betting a total of £480,000 on his lucky number, black 17.

The maverick retail tycoon placed bets on every combination that included 17 – such as the wheel stopping on black, odd and a number between 1 and 18 – in a complex bet known as a "complete".

As the chips piled up before the spin, fellow punters in the luxurious 50 London casino in St James Street, Mayfair, where 45-year-old Mr Ashley is a regular, gathered around the table.

Divorcee Mr Ashley watched impassively as the roulette wheel turned.

As the ball dropped into slot 17, the expectant crowd broke out into loud applause.

Mr Ashley calmly looked up at the croupier and said: "That'll do me, thanks very much," and walked off with his winnings.

He had spent just 15 minutes at the table.