Noppon Saengkham has tested positive for Covid-19 and has been withdrawn from Betfred World Championship qualifying.
Saengkham, who returned the positive test off-site, was due to play either Lyu Haotian or Gao Yang in round three. The winner of that tie will now receive a bye to the final qualifying round.
All on site tests conducted on players and staff so far have returned negative results.
Saengkham will now undergo a period of self-isolation and will receive the support of WST and the WPBSA.