World number three Judd Trump suffered a shock 5-1 first-round exit to Michael Holt at the Shanghai Masters - the third ranking event of the season.
Holt had led 3-1 at the interval, which included a superb century break of 115.
And he compiled 97 in the fifth, wrapping up the match in the next with a 60 break as Trump failed to get the snooker he required on the blue ball.
"It's frustrating to come such a long way and lose in the first round. Michael deserved to win," said Trump.
Matthew Stevens was another high-profile player who lost in China after a 5-4 defeat to Peter Lines, while there were wins for Neil Robertson - looking to secure his second ranking title in the Far East this season - world finalist Barry Hawkins and Hong Kong's Marco Fu.