Sterjovski rattled the woodwork as Perth were beaten 2-1 in Wellington on Sunday, their second loss in a row.

The Socceroo lamented the side's profligacy and warned that things must change.

"We have to be deadly in front of goal. It's not good just creating chances we've got to put them away. We had five or six really good chances and if we'd put a few of those away it would have been a different game," said Sterjovski.

Glory coach Dave Mitchell felt his injury-hit side had deserved at least a point from the game, particularly after dominating much of the second half before Bertos' thunderbolt effort from 35 metres.

He also had to contend with the departure of Chris Coyne and goal scorer Sikora with injuries within the first half hour.

"I thought we played very well and were probably unfortunate to come away with a loss after the way we played," he said.

"We scored a good goal and did very well and played some good football. We had a couple of boys who got knocks and injuries and had to change which disrupted us for about 10-15 minutes.

"But after that they settled down and, particularly the second half, I thought we played some good stuff and created many chances and probably should have stuffed a couple away."

Having picked up nothing from their opening two fixtures on the road, Glory return home for round three when they entertain Newcastle Jets on Sunday.