Sydney FC could move their A-League blockbuster against Perth Glory away from the SCG after rating it it sub-standard following an apparently serious knee injury suffered by Melbourne Victory star Terry Antonis.

The players’ union has called for an independent investigation of the playing surface, which has been slammed as dangerous after Saturday’s gamer between the Sky Blues and the Victory.

Second-placed Sydney are scheduled to host ladder leaders Perth at the SCG on April 18.

“The pitch clearly wasn’t up to the standards required for professional football and we are working with the SCG Trust and FFA to assess its suitability to host our game against Perth in 11 days’ time,” Sydney FC chief executive officer Danny Townsend said in a statement on Sunday.

“All options are on the table, including moving the game, and those discussions are already underway.”

Jubilee Stadium in Sydney’s south, where the Sky Blues will play Wednesday’s Asian Champions League game against Shanghai SIPG, is believed to be the club’s preferred venue.

Victory import Ola Toivonen weighed into the discussion on Sunday tweeting the FFA needed to take responsibility.

“They talk about growth and making the league exciting,” he tweeted. “In my opinion presenting a pitch like that is not acceptable.”

Victory coach Kevin Muscat labelled the surface “dangerous” and slammed A-League decision makers for giving the surface the green light for Saturday night’s big clash, after Antonis collapsed on the turf untouched.

Replays suggested his leg appeared to give way where turf joined the edge of the cricket square.

“If nothing gets said, we’re just accepting it as a code,” Muscat said. “But to ask players to come and work under those conditions is unacceptable.

“It might be a serious injury as a result from it. And for players to go out onto that, whatever it’s called, is a disgrace.”

PFA chief executive John Didulica demanded clarity from FFA as to how the match was allowed to proceed “given the deplorable state of the SCG’s pitch, and the clear danger it posed to player safety”.

The PFA will convene a meeting with its A-League delegates this week and recommend two resolutions.

“Firstly, that FFA immediately commission an independent investigation into the process undertaken to approve last night’s match as being fit for play,” Didulica said.

“Secondly, endorse a motion that players will no longer play on surfaces unacceptably compromised by a cricket wicket.

“As demonstrated last night, cricket wickets present an unreasonable danger to the health and safety of footballers and it remains the view of the PFA that players are under no obligation to participate in matches when such risks are present.”

It is the second time in a month the SCG has come under fire, having also been forced into emergency work before a round-one NRL fixture in early March.

It came just days after a NSW Waratahs rugby union game tore up the ground, resulting in 3000 square metres of turf being re-laid.

The A-League furore is the latest in a string of controversies across Sydney’s sporting codes as Allianz Stadium undergoes a reconstruction.

It has forced regular SCG tenants Sydney Swans to share the venue with Sydney FC, Sydney Roosters and the Waratahs in a jam-packed schedule.