Ronnie O'Sullivan will be asked to name names following his match-fixing outburst on Twitter.
In the aftermath of Stephen Lee being found guilty of fixing, O'Sullivan sent a series of tweets alleging Lee was not the only player who had thrown matches.
Lee, the former world number five, was found guilty of charges relating to seven matches in 2008 and 2009 on Monday and could now face a life ban.
Yet O'Sullivan, who won his fifth world title earlier this year despite a significant break away from the sport, believes this may just be the tip of the iceberg.
World Snooker chairman Barry Hearn has confirmed O'Sullivan will be compelled to back up his allegations and warned he could be charged with bringing the game into disrepute if he does not do so.
"If he has names and he knows of incidences he has an obligation and a duty to report them and failure to do so will put him in breach of his player's contract," Hearn said.
I've heard there's many more players who throw snooker matches .. I suppose Steve lee was just caught out— Ronnie O'Sullivan (@ronnieo147) September 17, 2013
"World Snooker will be writing to Ronnie to say that under his player's contract it is his responsibility to report any incidences he's aware of and failure to do so would lay him open to a charge of bringing the game into disrepute.
"There's no point in making vague announcements, if he knows something he has a responsibility to be specific and World Snooker will be writing to him on that basis.
"It's for him to tell us. He's either got to say, 'actually I don't know anything', or if he knows something then he has a responsibility to tell us and if he doesn't tell us then he could be brought into disrepute."
O'Sullivan is no stranger to controversy and has threatened retirement on several occasions but, after claiming consecutive world titles, it appears he is now happy to be back on the circuit.Suggest a correction