Arzani is the youngest player at Russia 2018 and just months ago there was still uncertainty as to which country he’d play for.

The Socceroos take on France on Saturday night (8pm AEST).

“Arzani is a big talent and can make a difference,” van Marwijk said in Kazan on Friday.

“I don’t think he’s capable at this level to play a whole game, but the game against Hungary said a whole lot about him. He’s proved he can make a difference in 25 minutes.

“He has the qualities to make the difference.”

There is still ambiguity about who’ll captain Australia against Les Bleus as Mile Jedinak was originally supposed to front the press on Friday, however it was changed to Mathew Leckie.

Trent Sainsbury could wear the armband against France after captaining the side in their wins against Hungary and Czech Republic.

The boss said unprepared to give anything away on how the team will line up in Kazan.

“It’s sometimes good to have to someone different sitting next to me and it’s good for the player to have the experience,” he said.

“It’s nothing to do with those things (Jedinak being the captain).

“I’m not going to talk about our tactics. They are one of the best teams in the world. We are playing against an opponent who can win the World Cup. We like to be the best team.”