Brosque's slim chances of playing a role in any potential Sky Blues finals campaign have bitten the dust with news he's decided instead to focus on getting rehabilitated in time for next season.

Having started 2015-2016 as Sydney's biggest goal threat, the 32-year-old went on to endure a frustrating battle with his hamstring that started in December when the original injury was misdiagnosed.

That prompted him to return to action too early and further inflame the problem, which eventually ended his season.

On medical advice, Brosque will go under the knife and then begin the long road back to fitness.

Despite speculation the off-contract former Socceroos attacker may think about retirement, he's told coach Graham Arnold he wants to continue playing and anticipates the club will agree a new deal.

The lengthy absence of the influential skipper has coincided with Sydney's results dive.

Arnold's side are three points outside the top six after throwing away a two-goal lead against wooden-spooners in waiting Central Coast Mariners on Saturday to settle for a 2-2 draw.

With their finals hopes now teetering on the edge, they travel to Suncorp Stadium this weekend to face Brisbane Roar before a tough run home against Adelaide United and Perth Glory.