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Second round, Best of 25 frames
Morning session scores: Neil Robertson 4-4 Chris Wakelin, Kyren Wilson 9-13 Mark Allen
Afternoon session scores: Zhao Xintong 9-7 Ding Junhui, Judd Trump 4-4 Hossein Vafaei
Evening session scores: John Higgins 2-6 Ronnie O'Sullivan, Mark Williams 9-13 Barry Hawkins
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Williams 9-13 Hawkins
One of the Class of 92 has bid farewell to the Crucible, at least for this year.
Barry Hawkins finishes in style with a brilliant long blue as a break of 44 is enough to see off Mark Williams.
Higgins 1-3 O'Sullivan
Stephen Hendry
Seven-time world champion on BBC Four
John Higgins has not settled at all tonight. So far he's not been able to play with his normal rhythm at his normal pace. Even that break he made in that frame was not John Higgins-esque. He's not relaxed at all.
Ronnie O'Sullivan has been serene. He's been all over John like a rash.
Williams 9-12 Hawkins
Mark Williams comes out after the mid-session interval and banks a frame to give himself a glimmer of hope.
It could prove to be a stay of execution, though, with Barry Hawkins at the table in the 22nd frame and 47-25 up and the table looking handy for him.
Higgins 1-4 O'Sullivan
John Parrott
1991 world champion on BBC Four
John Higgins has not done a lot wrong. He just cannot get involved.
Higgins 1-4 O'Sullivan
Ronnie O'Sullivan does make John Higgins pay, disposing of the final red with a beautiful long pot before going to work on the colours.
A break of 95 and the Rocket is flying high at the moment.
Higgins 1-3 O'Sullivan
Steve Davis
Six-time world champion on BBC Four
Ronnie O'Sullivan has really put it on John Higgins and the alarm bells are ringing. John has been lucky to get one frame.
John has got enough grit and determination and just needs a few chances. He needs to get his hand on the table and a break under his belt.
Higgins 1-3 O'Sullivan
John Higgins fails to pick a red up from edge of the pack into the corner pocket which allows Ronnie O'Sullivan back to the table.
Can the Rocket make him pay?
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This is proper matchplay snooker now. Ronnie’s just trying to impose himself on the table, but Higgins is staying in the balls and asking questions with every visit.
Mickey, Frome
Higgins 1-3 O'Sullivan
An important bit of table time for John Higgins.
His highest break of the match so far - 28 and counting - as he looks to wrestle back some of the momentum from Ronnie O'Sullivan.
Higgins 1-3 O'Sullivan
This is the a seventh match at the Crucible between Ronnie O'Sullivan and John Higgins.
That equals the record for the most frequent meetings at the famous Sheffield venue that was first set by Steve Davis and Terry Griffiths and has since been matched by Stephen Hendry and Jimmy White.
Higgins and O'Sullivan first went head to head at the Crucible in 1996, when they were both decidedly more fresh faced.
O'Sullivan fought back from 10-5 and 12-10 down to win a thriller, 13-12.
Where have those 30 years gone?
Williams 8-12 Hawkins
Dennis Taylor
1985 world champion on BBC Two
Barry Hawkins will go off at the mid-session interval quite delighted. He just needs one more frame to see off Mark Williams.
Williams 8-12 Hawkins
A break of 85 from Barry Hawkins has put him within touching distance of victory over Mark Williams.
There was a brilliant plant in there en route.
Hawkins has restored his four-frame advantage over the Welshman.
Higgins 1-3 O'Sullivan
Ken Doherty
1997 world champion on BBC Four
We were anticipating fireworks and we are certainly getting them from Ronnie O'Sullivan. A wonderful break from the seven-time champion.
Higgins 1-3 O'Sullivan
Exhibition stuff from Ronnie O'Sullivan as he rattles in the first century break of the match - 137 - to take an early grip on this match.
John Higgins needs to shake himself into life after the mid-session interval.
Higgins 1-2 O'Sullivan
An hour off the match gone and Ronnie O'Sullivan looks to be heading into a 3-1 lead.
He's just broken up the pack of reds during a break of 71 which is still ongoing.
John Higgins has not managed a break of more than 20 so far...
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The Class of 92 are still going strong 34 years later. Mark Williams has already stated he will never retire. All three are living legends. Long may it continue!
Jack, Oswaldtwistle
Image source, Getty ImagesJohn Higgins and Ronnie O'Sullivan are both now 50, while they are joined in the last 16 by the third member of snooker's fabled 'Class of 92', with 51-year-old Mark Williams still in contention for a fourth title.
O'Sullivan holds the record for being the oldest world champion after his most recent success four years ago, aged 46, but that could be beaten in the next week and a half.
Higgins 1-2 O'Sullivan
A break of 82 from Ronnie O'Sullivan helps him regain the lead. John Higgins yet to really settle and find any rhythm with his cueing so far.
Williams 8-11 Hawkins
Some graft from Mark Williams.
A break of 66 from the Welshman and he's back down to three frames behind Barry Hawkins.
The veteran will need to string a few more frames together here, though.
Higgins 1-1 O'Sullivan
Stephen Hendry
Seven-time world champion on BBC Four
Quite a lot of walking from Ronnie O'Sullivan tonight. That's not something he does a lot of. He's not getting into his shot as quickly. Whether that's the occasion, or a little bit of uncertainty I don't know.