De Jong to play in Grand Final

Sydney FC have insisted marquee Siem de Jong is not in doubt for Sunday's Grand Final, after he was told to stay away from training while he is ill.

The Sky Blues didn't want to take the risk of having the Netherlands international pass his illness to the rest of the squad ahead of the decider against minor premiers Perth Glory.

De Jong called in sick on Thursday and the club's medical staff told him to stay at home but coach Steve Corica told reporters just before the squad flew out to Perth that De Jong would be "fine" for the Optus Stadium clash.

"Siem was missing yesterday, he was a little bit ill but other than that he's good to go," said Corica. "It was a bit precautionary to keep him away from the boys but he's here today and raring to go."

The former Ajax player is set to complete a season-long loan by playing in the Grand Final and the Sky Blues have also been boosted by the availability of defender Michael Zullo.

The left-back was able to return to training on Thursday after hurting his shoulder in the 6-1 semi-final win over Melbourne Victory.

Corica is likely to name the same starting side but wasn't about to divulge his plans at this stage.

"We've still got two days to go so you'll have to wait and see," added the coach. "The boys played exceptionally well against Melbourne, very proud of the performance they put on at home in front of our fans.

"But this is a different game, a different kettle of fish, and we're going to Perth."

Sydney FC are 1/1 to win the Grand Final and 11/5 to win in 90 minutes, with Perth Glory 5/4 and the draw 12/5.