Kyren Wilson needs four more frames to progress to the second round on day one of the World Snooker Championship in Sheffield.
The defending champion resumes his opening match leading Lei Peifan 6-3 this evening.
Another former winner, Mark Williams, is 5-4 up against China's Wu Yize .
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Neil Robertson trails Chris Wakelin 7-2.
They'll finish off their tie tomorrow afternoon.
