Mark Davis beats Mark Williams at International Championship

World number four Mark Williams was beaten in the first round of the International Championship in Chengdu, China, by England's Mark Davis.

Davis, the world number 20, sealed a 6-4 win over the two-time world champion with a 138 clearance.

"Mark is a legend of the game but he was not at his best today," Davis told worldsnooker.com.

World number two Judd Trump looked in good form, sealing a 6-3 victory over Fergal O'Brien.

A break of 118 was the highlight for Trump, who will meet world number 71 Aditya Mehta in the second round of the £600,000 world ranking event after the Indian stunned 10th-ranked Stuart Bingham 6-4.

"It's definitely my best win so far because Stuart has been one of the best players in the world this season," said Mehta. "It's great for my country. I will need to play better against Judd Trump and I am ready for it."

Marco Fu beat Martin Gould in an 11th-frame decider and goes on to play Davis, while there were also wins for Stephen Maguire, Mark Allen, Ding Junhui and Ricky Walden.

Maguire defeated Scottish compatriot Jamie Burnett 6-3 to book a last-16 meeting with Peter Ebdon.

Allen triumphed over Robert Milkins 6-2 to set up a meeting with Cao Yupeng, the player he accused of being dishonest at the World Championship in April.

Ding plays Shaun Murphy in the second round after a 6-1 thrashing of Chinese compatriot Zhou Yuelong, while Walden takes on world number one Mark Selby thanks to his 6-4 win over Lu Ning.