Mark Allen won the last two frames to trail Cao Yupeng 5-4 after the opening session of the World Championship first-round match at the Crucible.
The Antrim player made a poor start and was quickly 3-0 down against his Chinese opponent.
Yupeng led 4-1 and 5-2 before the World Open champion fought back and Allen made a break of 88 in the final frame of Saturday night's session.
The match in Sheffield resumes on Sunday afternoon.
88-45 (70), 51-42, 81-8 (69), 86-0 (86), 74-46, 9-76, 73-10 (51),