European Tour boss George O'Grady has demanded an apology from Gary Evans for hitting out at Colin Montgomerie.
Evans is not a member of the players' tour committee
Evans was critical of Montgomerie's actions at the Indonesia Open in March, when the Scot played his ball from the wrong spot following a weather delay.
Evans was quoted as saying that Montgomerie's actions "compromised the integrity of our game".
But O'Grady said: "I demand he (Evans) apologises. The whole issue has been debated and is finished."
Montgomerie escaped punishment for his actions but admitted his error and donated his prize money from the event to the Tsunami Appeal.
But Evans tried unsuccessfully to take the matter further at a players' meeting at Wentworth before this week's BMW Championship.
He then spoke to reporters on Saturday, calling for Montgomerie to be penalised.
O'Grady added: "I find it enormously disrespectful of this player if the comments attributed to him are true.
"I would expect him to apologise to Jamie Spence and the 14 other elected members of the tournament committee for publicly undermining the leadership of the tour."
It now seems likely that Evans, who pulled out of the BMW Championship with a back injury, will face charges under the Tour's code of conduct rules.