"We put good pressure on Norway. But a couple of mistakes against players at this level will always punish you. So we need to learn lessons from our mistakes."

The Australian tactician admitted that Norway's second goal, which came from a weak back pass to Iraq goalkeeper Jalal Hassan, was a turning point.

"It really probably hurt the players mentally," said Arnold. "I tried to pick them up and say it's the past, and we've got to get over it."

Iraq, who are appearing at the Finals for only the second time, face France next on Monday, with Senegal to follow and Arnold was adamant that the former Asian champions can advance to the knockout stage.

"We're in a group phase, there's nine points available," he said. "We've got to take all the positives out of today and get ourselves ready for the next game.

"There is still the opportunity for third spot. Three points should be enough to get you through."