Rostyn Griffiths will make his Perth Glory debut on Sunday when he fronts up against Melbourne Heart in country NSW.

Former Mariners midfielder Rostyn Griffiths reckons his new club Perth Glory are a top-three side on paper, but admits it may take some time to gel following an influx of players.

Griffiths joined Serbian midfielder Nebojsa Marinkovic and Lithuanian international Darvydas Sernas as Glory newcomers during January’s transfer window.

Although Perth sit seventh on the table, they are just three points adrift of fourth-placed Melbourne Victory.

Perth’s finals hopes will be put to the test over the next five weeks during a tricky stretch that includes four away games and a home encounter against high-flying Western Sydney.

That sequence will kick off on Sunday when Glory take on Melbourne Heart in forecast 41-degree heat in Albury, NSW.

Griffiths played with Adelaide, North Queensland and Central Coast before moving to Chinese powerhouse Guangzhou on a $1.3 million deal.

The 25-year-old, who has signed with Perth until the end of the 2014/15 campaign, said the Glory had the chance to make some major inroads in their remaining 10 games of the regular season.

“Brisbane Roar are the shining light of the league. Everyone else is pretty much on par,” he said.

“So it’s all about getting a good run towards the finals series.

“To me we are a top-three squad at the moment. If we can get up there, come finals time, who knows what can happen.

“We’ve been working on getting used to each other.

“Because if you bring in a whole new group of players, it doesn’t matter how good you are as individuals, if you’re not like that as a team, it’s a waste of time.”

Griffiths, who has overcome a minor knee niggle, is set to play around 45 minutes in his Glory debut this weekend.

Perth are hopeful former French international William Gallas can recover from a calf injury in time to take his place in defence.