Sydney FC coach Steve Corica says they are doing their best to bring in new players as injuries and international call-ups are threatening to derail their A-League campaign.
The Sky Blues are out to win the 2021/22 A-League grand final but have plenty of work to do following a sluggish start to the campaign.
Sydney were without experienced forwards Adam Le Fondre and Kosta Barbarouses as they slipped to a shock home defeat against Perth Glory on Saturday night.
And their side is about to be weakened further as goalkeeper Andrew Redmayne and fullbacks Rhyan Grant and Joel King have been called up to the Socceroos squad for the crucial World Cup qualifiers against Vietnam and Oman.
And things do not get any easier with Sydney facing high-flying Melbourne Victory away from home on Tuesday night.
"It hasn't been a great week and we've got another tough game in three days time," Corica said after the 2-1 loss to Glory.
"We've got three in the national team as well as a couple of injuries so it's going too be very tough to go to Melbourne and win, but we will put out the best side available."
Sydney have added Socceroos midfielder Mustafa Amini to their ranks but Corica says their attempts to identify other players has so far fallen flat.
"We have been looking for quite a while now," Corica added. "We brought Musty (Amini) early on in the window and we have been looking since then, but at the moment we haven't found anyone."