Western Sydney Wanderers have called for new leaders to step forward and take control of the Red and Black Bloc amid threats to disband the group immediately should they misbehave in Saturday night's match against Arsenal. 

In an open letter issued to their members, the Wanderers announced they have lost faith in the current leadership of their active supporter group and have run out of patience with the RBB following their history of anti-social incidents. 

Ahead of one of the most high-profile games in the club's short history, the Wanderers declared they will shut-down the active support area, disband the RBB if there is any incident from the active supporters that brings the club into disrepute. 

"It is quite clear that this cannot continue and such behaviour will not be accepted at our matches," the letter read. "Notice is hereby given that should any of these incidents happen this season, including use of flares or other incendiary devices, violence, pitch invasion, discriminatory behaviour or acts that constitute a failure to live up to the terms of admission into the venue, then the club reserves the right to close down the active support area for an indefinite period as outlined by the club which will lead to the redeployment of non-offending Members to other available seating in the Stadiums during this closure."

Communication with the RBB leadership ceased in February last year after the group broke ties with the club's administration in protest of their stern response to an insulting and homophobic banner displayed in a game. The club is understood to harbour little faith in the current leadership's ability to not only self-police but to set a positive example and has called for a new leadership to step-up and steer the RBB. 

"To assist in the prevention of any such closure we are seeking those who feel passionately about the Western Sydney Wanderers Football Club and wish to lead this active support change to come forward and take part in the evolution of active support at Western Sydney Wanderers matches," the letter read. 

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