Ronnie O'Sullivan is in charge after the opening session of his last-16 clash with John Higgins at the World Snooker Championship.
The seven-time winner will resume this evening ahead by 6-frames-to-2 at the Crucible.
But last year's runner-up Mark Williams is out - losing 13-9 to 2013 finalist Barry Hawkins.
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Title-holder Zhao Xintong has a narrow 9-7 lead over fellow Chinese player Ding Junhui.
