Zhang Anda produced a superb potting display to defeat world champion Zhao Xintong 6-2 as he advanced to the last eight at the UK Championship in York.

Having lost the opening frame of the all-Chinese affair, Zhang hit back-to-back centuries as the first four frames were shared.

But Zhao, who was guilty of missing several routine pots, was heavily punished by his compatriot when play resumed after the interval.

Zhang was near faultless among the balls and reeled off their next three frames with breaks of 87, 69 and 73 before rounding off his victory in a nervy eighth frame.

The 33-year-old, who has now reached three consecutive quarter-finals at the tournament, will face either John Higgins or Shaun Murphy next.

Even though Zhang had defeated Zhao in their only previous competitive meeting a decade ago, he was still regarded as the outside chance going into this contest.

More to follow.