Mark Williams outlasts Wu Yize to make World Snooker Championship last-16

Welshman comes from behind for 10-8 victoryXiao Guodong completes 10-4 win over Matthew SeltMark Williams was forced to dredge up every inch of his Crucible experience to sink rising Chinese star Wu Yize 10-8 and book his place in the last 16 of the World Snooker Championship for the 22nd time in his career.Williams, who turned 50 last month, delivered two near-faultless final frames to hold off his opponent, who had missed a golden chance to seize a 9-7 advantage when he missed a frame-ball red