Reigning champion Williams admitted to hospital with chest pains
Defending champion Mark Williams suffered a worrying health scare after the opening session of his second-round tie with David Gilbert at the World Snooker Championship.
Williams lost the session 5-3 and later posted on social media that he was in the A&E department of a local Sheffield hospital due to chest pains.
The 44-year-old informed tournament officials of the issue after the session and was advised by the on-call doctor to attend hospital. The Welsh man made his own way there and is understood to be with his wife Joanne and son Kian.
The snooker star took to Twitter to offer an update on his health: "A&E. Could be here a while, couldn't stick the chest pains no more. Lucky there wasn't any more frames to play."
Breaks of 105, 66 and 58 had earlier helped Williams get back on level terms against Gilbert, but the latter took the last two frames of the day to carve out a 5-3 lead. Their last-16 match is due to resume at 10am today at the Crucible.
Williams also won world snooker titles in 2000 and 2003, beating Ireland's Ken Doherty 18-16 in the latter decider.
Meanwhile, last night Neil Robertson became the first player to reach the quarter-finals as he took the last five frames of his heavyweight clash with Shaun Murphy to prevail 13-6.
The 2010 champion led 10-6 heading into the evening session and his third ton of the match stretched his lead. A break of 88 put the Australian within one frame of victory against the world number 13 - a target he reached by scoring his ninth break of 50-plus. He will play Stuart Bingham or John Higgins in the last eight.
After Ronnie O'Sullivan's sensational first-round defeat to amateur James Cahill, three-time champion Mark Selby is also in danger of an early exit as he trails qualifier Gary Wilson 9-7 ahead of this morning's final session.
World number two Selby hit back from losing the opening session 5-3 on Thursday night to move 7-6 clear after breaks of 64, 84, 120 and 72.
However, Wilson - a former taxi driver before he pursued a full-time career on the baize - finished strongly as runs of 97, 115 and 78 protected his two-frame overnight advantage over the 'Jester from Leicester'.
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