Keynsham snooker sensation Judd Trump scored the best win of his young career to date in beating world champion Ronnie O’Sullivan in the Royal London Watches Grand Prix quarter-finals.

The nail-biting 5-4 success was screened live by BBC television and sent the 19-year-old into the last four of a ranking tournament for the first time.

Trump, who is based at Keynsham Snooker Centre, said:  "It feels brilliant, we both struggled but I went out there to do a job and I did it. To beat Ronnie on TV is massive for me.

"I fancy beating anyone on my day, if I have a good semi-final I can go on and win this tournament.

“I need to work on my break building as I'm making 40 or 50 and then breaking down.”

A loose safety shot from O’Sullivan allowed his teenage opponent a half chance in the opening frame. He made 40 before running out of position but it was not long before he got a second chance and he secured the first frame with a run of 23.

Trump had the Rocket in trouble in the second frame but the world number one, having taken eight attempts to escape from a couple of snookers, then made 32 before he lost position on the final blue. His attempted safety left the blue hanging over the yellow pocket which Trump gratefully accepted to establish a 2-0 lead.

O'Sullivan finally got on the board in the third frame, clearing to the pink in making a 66.

He levelled in the next, but it was a real tussle. The Rocket's safety play rescued him on several occasions and despite Trump making a 51, his highest of the match, both players had chances.

With the brown near the bottom cushion, the 19-year-old tried a difficult thin cut but left it in the jaws and O'Sullivan dished to the pink.

After the break, O'Sullivan hit his stride with a break of a 104. He followed that with a 44 in the next but Trump was given another chance in what proved to be a pivotal frame. On his second visit he cleared to the blue, leaving O'Sullivan requiring a snooker. He got it when the Bristolian hit the black trying to swerve round it to the pink. O'Sullivan potted the pink but then somehow failed to pot the black left handed to leave the match finely poised at 3-3.

They shared the next two to go a decider and world number 41 Trump had several chances before securing a famous victory to reach the semi-finals for the first time.

O’Sullivan said: "I didn't play well, I didn't expect to win. I have to keep chipping away but today it ran dry.

"I've not seem a lot of him, he's a good long potter, they're all dangerously good. I can't pot a ball over six foot.”