Sydney's hectic schedule is taking a toll on the A-League champions' midfield with Milos Ninkovic and Luke Brattan racing to be fit to face Newcastle Jets.
Sydney will wait until the last minute before deciding whether to risk either Serbian playmaker Milos Ninkovic or midfielder Luke Brattan for Saturday's clash against Newcastle.
Both players picked up knocks in Wednesday's 2-0 win over Western United and are racing to be fit for the visit of the Jets to Netstrata Jubilee Stadium.
The victory over United was Sydney's first in five matches but came at a cost with Ninkovic limping off after a challenge by Tomislav Uskok which hurt the veteran's ankle.
While Ninkovic trained on Friday, Sydney coach Steve Corica said he wouldn't be taking any unneccesary risks with the 36-year-old.
"He's a lot better," Corica said.
"He'll train today and then we'll see how he pulls up."
Should Ninkovic be ruled out, the Sky Blues have a ready made replacement in Alex Baumjohann and Corica said the German would relish any opportunity to start after mostly being limited to cameos off the bench this season.
"Obviously Baumjohann hasn't had his opportunities in the first 10 games than what he would like, this may be an opportunity for him as well," Corica said.
Brattan would also have to be assessed after being subbed out late in Wednesday's win.
The Jets head to Sydney having slipped to second-last on the ladder following last Friday's loss to Adelaide.
Newcastle coach Craig Deans has named Liridon Krasniqi in his squad for what could be the Kosovan's first A-League appearance.
"They play some good football," Corica said.
"They've got good quality players that obviously can hurt you as well in their final third. The short turnaround, we just have to make sure that we're ready and up for it."
KEY MATCH STATS
* Newcastle are aiming for back-to-back wins over Sydney in the A-League for the first time since December 2012.
* The Jets have only scored more than once in just one of their 11 games this season, with their nine goals in those matches the lowest tally in the competition.
* Rhyan Grant's goal in Wednesday's win over Western United was just his eighth in 200 appearances for Sydney. He has never scored in 22 games against the Jets.