SNOOKER:Ronnie O'Sullivan last night expressed regret for his amazing UK Championship walkout, admitting frustration with his game had got the better of him.

"The Rocket" added the latest chapter to the story of a career loaded with controversy when he conceded his quarter-final in York against Stephen Hendry after only five frames, trailing 4-1.

In a statement released by his PR representatives, the world number three apologised for letting down his large contingent of supporters and admitted he had done the wrong thing.

"I wish I could have played a better game but I had a bad day in the office," said O'Sullivan. Spectators will be offered tickets for today's snooker.