The three-times champion Mark Williams admitted he does not know whether he has played his last World Snooker Championship match after he suffered a dramatic 10-9 defeat to Si Jiahui in the first round.
Williams resumed with a 5-4 lead but it was the Chinese 21-year-old who hit the ground running on Tuesday, taking each of the opening four frames to go into the mid-session interval 8-5 in front. Williams then won four of the next five to make it 9-9 and set up a decider, with Si holding his nerve to close out a narrow victory. While Si will face Jak Jones in the second round, Williams confessed he did not know whether a return to the Crucible is on the cards but appeared to rule out immediate retirement.