Brosque re-injured his troublesome hamstring in Saturday night's Big Blue 1-1 draw with Melbourne Victory, only three weeks after returning from a two-month layoff.

The club are awaiting scan results due late on Monday afternoon, which will indicate how long the 32-year-old can expect to be sidelined.

However, he is almost certain not to play in Wednesday night's home AFC Champions League match against Chinese giants Guangzhou Evergrande, and appears unlikely to face Melbourne City away this Saturday.

Fellow forward Matt Simon was cleared of any organ damage or broken ribs after being taken to hospital after the match with Victory, but suffered some internal bleeding and is also an unlikely prospect to face Evergrande.

Meanwhile, David Carney believes the Sydney FC's younger players can do the heavy lifting through the club's biggest week of the season.

A daunting double date against Guangzhou and then City will need to accomplished without key players.

The boys had an active recovery session at Coogee as they prepare for the Asian Champions on Wed! #SydneyIsSkyBlue pic.twitter.com/L2GjjUCDpg — Sydney FC (@SydneyFC) February 29, 2016

A combination of bad fortune and poor planning has laid out key men at either end of the pitch.

Carney, very much the man of the moment after firing Sydney FC's equaliser, backed the club's next-gen attackers to step up in their absence.

"We've got young ones, (Andrew) Hooley and (Chris) Naumoff that can step up," he told AAP.

"We've got a bit of depth. The quality of players that are going to be out of the squad, of course we'd like them in.

"But this is what happens in football and we've all got to dig in deep and stick together."

Jacques Faty's red card against Victory means he won't be heading back to Melbourne along with Seb Ryall and Rhyan Grant - who both miss the City clash after tallying up enough yellows for a ban.

Carney's second-half caution against Victory - his eighth of the season, means he'll also miss the game but the former Socceroos winger hopes his first goal for the club in almost a decade will inspire his teammates to kick on.

"At 1-0 down with 10 men with half an hour to go, a lot of people, a lot of players would have given up," he said.

"It showed the character of the team. We need to kick on now.

"It's important we keep the performances up and hopefully get a three point return soon."