The big surprise of the World Games so far has been the defeat of Shanghai Masters champion Ricky Walden.
He lost 3-1 to Wu Yu Lin of Taiwan today.
Another professional, Mike Dunn, was beaten 3-2 by Egypt's Mohammed Awad yesterday.
It leaves us with a quarter-final line-up as follows:
Shu Hun Lin (Taiwan) v David Grace (England)
Soheil Vahedi (Iran) v Mohammed Awad (Egypt)
Nigel Bond (England) v Thepchaiya Un Nooh (Thailand)
Mohammed Shehab (UAE) v Wu Yu Lin (Taiwan)
Gerard Greene, who won the gold four years ago, withdrew for reasons unknown.