The coach believes his team is growing in confidence though with Saturday night's 1-0 win over Newcastle Jets the club's second victory in succession.

Alex Brosque's first half strike was the difference but Culina's men could not find the second killer goal to finish off their visitors, indeed Gary Van Egmond's side came close to snatching a later leveller from a set piece.

Culina, who recalled Juninho to the starting line-up but left skipper Tony Popovic on the bench, admitted he hadn't slept too well as he pondered a variety of selection headaches.

However, the only real gripe he had after the win over the Jets was that Sydney had been unable to add to Brosque's second strike of the campaign.

He said: "We're no Manchester United but we're growing in confidence.

"Last week in Brisbane was terribly important for the players to regain some of that confidence that had been lacking since the Champions League.

"Tonight I thought we stuck in when we had to but we also played some really nice football which was pleasing. But we've still got a fair way to go. It's fair to say we can play better than that.

"We need to have a greater killer instinct but again, that comes with confidence, that comes with having everyone available."

Six points from six has brought the smiles back to Sydney faces though.

Culina said: "There's no doubt the two results will have lifted everyone, will give us a bit more confidence and hopefully give us that killer instinct that we probably need to add if we're going to be a top side."

At least the manager has growing depth in his squad as more bodies become available, albeit that he will soon be depleted again through Olympic duties.

He said: "I had a (selection) headache. I didn't really sleep well over the last couple of days as I had to make some tough calls, whether to bring Juninho in, whether to split Rudan and Milligan (to bring back Popovic) but they're pleasant decisions as well because it means everyone is eager to play.

"It puts us in good stead for next week against Melbourne."