Wigan Warriors have claimed Leigh Leopards do not intend to fulfil Friday's Super League semi-final due to a dispute over ticket allocation.
Wigan say they received written notice from Leigh owner Derek Beaumont on Tuesday night that his club would not play in the match.
Leigh had been given the option of 4,600 or 5,400 tickets for their travelling supporters at the 25,000-capacity Brick Community Stadium, well above the 10 per cent minimum Wigan were required to give.
However, Wigan say Leigh were unhappy with the number of tickets received.
Leigh Leopards and the RFL have been contacted for comment.
Wigan's statement said: "At 10.37pm on Tuesday September 30, our club was informed in writing by Derek Beaumont of Leigh Leopards that they do not intend to fulfil this Friday's schedule