Mark Williams turned on the style as the Welsh wonder aims for a fourth Betfred World Championship.

Williams, who trailed 5-3 against Alan McManus at one stage of their first-round encounter, reeled off seven frames in a row to ease into round two on Saturday.

The number three seed, king of the Crucible in 2000, 2003 and 2018, is 25/1 to win the tournament once again and faces Stuart Bingham in the second round.

Williams is 13/10 to come out on top and said of his win over McManus: “Yesterday he outplayed me and it could have been 7-2. Tonight I put pressure on him, then he got frustrated and I knew I had him as long as I didn’t make silly mistakes.”

Three former world champions – Neil Robertson, Ronnie O’Sullivan and John Higgins – are in action on a super Sunday of green baize drama.

O’Sullivan remains the biggest draw in the game and is usually the quickest man around the table, however even he may have to play second fiddle to rapid Thai talent Thepchaiya Un-Nooh when the two start their match at 2.30pm.

‘The Rocket’ is 1/5 to start with a win but the five-time world champion has not been beyond the quarter-finals in his last five Crucible visits and was stunned by James Cahill last year.

Un-Nooh has won their only previous meeting at the 2014 German Masters and is 7/2 for the upset success.

Higgins, world champion in 1998, 2007, 2009 and 2011 and runner-up in each of the last two years, resumes at 2.30pm with a 6-3 advantage over Matthew Stevens. The Scot is 1/16 in the race to ten with Stevens a 15/2 shot.

Meanwhile, 2010 hero Robertson is 1/7 to overcome the dangerous Liang Wenbo in a 10am start. Wenbo hit a nerveless 141 to see off Fergal O’Brien in a decider in qualifying and could stay close enough to Robbo to be worth considering with a 4.5 frame handicap.

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