Mark Selby and John Higgins were knocked out of the International Championship, while Ronnie O'Sullivan cruised into the quarter-finals.
Selby led Tom Ford 3-1 before losing the next five frames, while Higgins lost 6-3 to Northern Ireland's Jordan Brown, who made a final break of 116.
O'Sullivan lost the opening frame against Scotland's Anthony McGill in 35 minutes before claiming a 6-2 win.
The seven-time world champion will face Ali Carter next in Tianjin.
Carter made centuries in his opening two frames as he enjoyed a 6-1 last-16 success over Daniel Wells in China.
Selby's conqueror Ford will meet Barry Hawkins, who recovered from 5-1 down to beat Thepchaiya Un-Nooh 6-5.
Brown will face Stephen Maguire in the last eight after the Scot edged past Ryan Day 6-4.
The quarter-final line-up is completed with an all-Chinese meeting between Zhang Anda and Ding Junhui.
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