The Warriors' attempt to seek leave to appeal the three-match ban handed to fullback Wade McKinnon for spitting at a match official has been denied.
McKinnon was found guilty of contrary conduct at the NRL judiciary on Wednesday night ruling him out of his side's crucial final-round clash with the Parramatta Eels.
After a review of the panel's findings, NRL Judiciary chairman Greg Woods expressed doubts over the likely success of an appeal and subsequently denied the club's request.
"The relevant test is whether an appeal, if allowed, would have 'good prospects of success'," Woods explained.
"This is a higher standard than of merely being arguable. Many points are arguable, but involve little prospect of persuading an appeal tribunal."
"This is such a situation."
He added: "The admission of spitting by the player (McKinnon), the video evidence of the movements of the player and the touch judge, and the previous reprimand represent a sound basis of support for the conclusion which the panel reached as to the applicant's intention."
"I am of the view that the verdict of the panel was not unreasonable, and not insupportable on the evidence."
"In my view, if an appeal went forward, it would not have good prospects of success."
Meanwhile, Raiders forward Tom Learoyd Lahrs was also unsuccessful in his bid to appeal a seven-match ban for a grade-four dangerous throw against the Knights in round 23.
"In my view there is no manifest excess in the grading, and the appeal would, if granted, have no reasonable prospects of success," Woods found.