WORLD champion Mark Williams headlined a list of big-name casualties on the third day of the Welsh Open snooker.

Cwm potter Williams was beaten 4-2 by Zhang Anda last night and was joined by Masters champion Judd Trump and German Masters champion Kyren Wilson in packing his bags.

Trump was upset 4-2 by Welshman Duane Jones while Wilson was knocked out by Joe O'Connor, who triumphed 4-3.

There were no such problems for former champion Mark Selby, a 4-0 winner over Adam Duffy, or for Ronnie O'Sullivan, who breezed past Yuan Sijun 4-2.

The five-time world champion edged closer to his 1,000th career century, with breaks of 120, 66, 90 and 99 taking him to 993.

O'Sullivan will now face Alexander Ursenbacher, a 4-1 winner over Zhang Jiankang.

Amateur James Cahill, who saw off Selby in the first round of the UK Championship, continued his heroics with a 4-2 win over former world champion Shaun Murphy.

Stuart Bingham saw off Matthew Selt and Neil Robertson beat Gary Wilson, both by a 4-1 margin, while Barry Hawkins was a 4-2 winner over Ben Woollaston.

John Higgins advanced with a 4-2 win over home favourite Dominic Dale, while there were also wins for Jack Lisowski, Michael Georgiou, Elliot Slessor, Robbie Williams, Jimmy Robertson, Martin O'Donnell, Sam Craigie, Craig Steadman and Cwmbran's Jak Jones.

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