Selby is ranked 28 in the world

The 1991 world champion, down to number 42 in the rankings, was unfortunate to find himself 4-1 down.

But he hardly got a look-in thereafter as Selby took frame six with a break of 104 - after an earlier 110 - and a 59 and a 57 made it 7-1 at the interval.

Further breaks of 71 and 63 secured the 23-year-old from Leicester a second-round meeting with Peter Ebdon.

Mark was pretty much exemplary - from 4-1 to 9-1 I didn't get a shot John Parrott

It was a disappointing way for Parrott to exit the tournament, after he had battled through qualifying.

But the Liverpudlian believes Selby can go on to make a big impression at the sport's second biggest tournament.

"It was very harsh for me to be 4-1 down," said Parrott. "But I've no complaints from that point on. You will be hard pressed to see anyone play better this week.

"Mark was pretty much exemplary - from 4-1 to 9-1 I didn't get a shot, and the nature of this sport is that you can't pot any balls if you don't get to see any.

"It will be another day for him against Peter Ebdon, though. Certain styles suit some players and not others, and I'm sure he will get a much tougher game off Peter than he had against me."

Selby, runner-up in the 2003 Scottish Open, enjoyed probably his biggest win when he knocked John Higgins out of this year's World Championship.

"I've got a lot of confidence at the minute," said the world number 28. "I won the World 8-Ball Pool Championship in the summer - I know it's not snooker, but it gave me a lift confidence-wise."

David Gray also enjoyed a comfortable passage into the second round, where he will play Matthew Stevens, after beating fellow Englishman Barry Pinches 9-2.

Welshman Ryan Day rattled off five frames in a row from 5-4 down to overcome China's Liu Song 9-5, completing victory with a break of 130.

He next faces the defending champion Ding Junhui.

Stuart Bingham was made to sweat in a nailbiting duel with Rory McLeod, coming from 7-5 and 8-7 down to win 9-8 in a final-frame finish.

Bingham's reward is a clash with Ali Carter, while Mark King will face John Higgins after a 9-4 win over Adrian Gunnell.

Joe Perry is on course to join them in the second round after opening up a 7-1 lead in his match against Michael Judge, one of four matches resuming on Tuesday.