The Moore Park men had the chance to reclaim first place on the A-League ladder but crashed to a 2-0 defeat in Perth.

The visitors paid the price for failing to take their chances and were made to pay when Scott Bulloch and Branko Jelic netted for Glory.

 Lavicka was left to rue his side's inability to take one or two first half chances.

"Very disappointed with that. We were good in the first half and in control of possession and the game," he said.

"But in the second half Perth made some changes and when they scored their first goal they lifted. It is a bit of a problem for us but when we were behind once again we couldn't come back."

The Sky Blues have now lost the past two away matches to the Gold Coast and Perth and will be desperate for a win when they return home to the SFS on Sunday to face Newcastle Jets.