The league leaders continue to set the pace but were flattered by the scoreline against a City side reduced to 10 men on 70 minutes.

After last week's 5-0 derby demolition, O'Neill said the Sky Blues failed to bring their A-game despite coming from a goal down to win.

"Look we know we can play a lot better and we can do things in the attacking third and the defensive third a lot better," the midfielder said.

"The good thing is we're still not playing at our best but we're winning games and we're scoring goals and that's the main thing."

The visitors drew first blood, despite losing their leading goal scorer Ross McCormack to injury and took a well deserved lead through Luke Brattan on 37 minutes.

But two defensive brain snaps opened the door for an Adrian Mierzejewski free kick (44') and a Bobo penalty (45+3'). Captain Alex Brosque finished off a razor sharp attack with virtually the last kick of the ball to seal all three points (90+6').

The Sky Blues are now 22 games undefeated at home - one off the A-League record. But O'Neill said that wasn't uppermost in their minds.

"All we want to do is win every football game we're in and that's our main goal," he said.

"We've got a job to do as professional footballers and we make sure we come out on the field and get the job done.

"We don't really focus on too much outside the club, all we can control is what we do on the park and this place is our fortress, it's our home and we play our best football and get results here.

"We're delighted to be able to win again. Obviously we can do a lot better, we know we can, but like I say it's important now that we keep getting results and we keep this momentum going."

City's Manny Muscat, who had just returned from suspension, picked up a red card with 20 minutes still on the clock for an elbow to Michael Zullo.

The VAR reviewed the incident, a fact that created plenty of controversy, especially after the video ref declined to rule on a foul moments earlier when Sydney striker Bobo raked his studs down the shin of Muscat.

Sydney now sit eight points clear on the table while City remain in third.