LIVE: Judd Trump (Eng) 2-1 Joe Perry (Eng)

Earlier: Mark Selby (Eng) beats Mark Williams (Wal) 4-2 and Ronnie O'Sullivan (Eng) beats Yu Delu (Chn) 4-

Last 16 - best of seven frames

Highlights of this evening's matches will be on BBC Two Wales & iPlayer at 23:15 GMT