Sydney FC's impressive 3-1 win over Western Sydney came at a cost, with Jop van der Linden now in doubt for the club's meeting with leaders Perth Glory.
The import defender suffered a hamstring injury in the victory at ANZ Stadium, which was a quality response from the Sky Blues after they had gone down 3-1 at home to Wellington.
Van der Linden fell awkwardly after an attempted tackle in the 15th minute, and the Dutchman may need to be replaced against the unbeaten Glory.
Asked about van der Linden's injury, coach Steve Corica said: "I'm not 100 per-cent sure, I think it was a little bit of a hamstring. I don't know how bad it is yet; I haven't seen him, (but) there's a little bit of a twinge there."
The Sky Blues trailed to a goal from Oriol Riera but came from behind to continue their dominance in meetings with their rivals – it was their fifth derby win in a row.
Corica had needed to go into the match without van der Linden's centre-back partner Alex Wilkinson due to a virus. Wilkinson's replacement, Aaron Calver, lasted 64 minutes before he too exited the match due to cramping.
"He hasn't played for quite a while; it was only normal, to come back and with heavy conditions, to start cramping up," said Corica of Calver.
"He'll be better off for it and he'll be fine next week – Jop, probably not."
Sydney FC, who are gunning for a third consecutive Premier's Plate, face a run of four big games now bookended by trips to Perth.
In between they have festive period home games against Brisbane Roar and Central Coast, who boast just one victory between them so far this season.
Sydney FC are 17/10 to win their next game against Perth Glory, who are 6/4 with the draw 12/5.
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