Perth Glory marquee defender William Gallas will spend a seventh successive week on the sidelines with a calf injury.

The former English Premier League star signed for Glory in November on a season-long deal reportedly worth $700,000, but has since made just two appearances for the club.

Gallas, 36, made his A-League debut off the bench in round six and lasted little more than half an hour before suffering the calf injury in his first start in round seven.

Glory chief executive Jason Brewer said last week the former French international would be “100 per cent” fit to play in Friday’s home clash with Melbourne Heart at nib Stadium.

But Gallas, who has been on light duties at training in recent weeks, told Fox Sports yesterday he was still another week away from being available for selection.

“I will say maybe one more week,” Gallas said.

“Normally I will start to train with my teammates this week.

“I’m working hard to come back on the pitch because I love to play and I’m very frustrated at the moment. I hope I will be back soon.”

Gallas is one of at least five first-choice Glory players unavailable through injury this week.

Right full-back Josh Risdon returned from a knee injury via the National Youth League on the weekend and scored a consolation goal for Glory in a 9-2 defeat to Sydney FC.

Club captain Jacob Burns is available after serving a one-match suspension.