Melbourne Heart coach John van 't Schip says he will need to assess the club's returning Olyroos before deciding what part they can play in Sunday's A-League clash with Central Coast.
Heart trio Mate Dugandzic, Jason Hoffman and Aziz Behich were not back from the Middle East in time for Friday morning's training session.
They were due to arrive at the club on Friday afternoon to be assessed by the Heart's medical staff before training with the team on Saturday.
"We know they all played and there were no major injuries," van 't Schip said.
"Still after the game and the flight, we will check on them today when they arrive and see if they have any niggles.
"We'll train tomorrow and see if we can involve them one way or another in the game."
Van 't Schip said it would make a big difference if the three players were able to play at least some part against the Mariners.
The Heart were already strengthened last round with the return of captain Fred and fellow veteran Matt Thompson from injury.