By Chris Harris

Arsène Wenger has called for a sense of perspective in the wake of Arsenal's surprise 3-2 defeat to West Bromwich Albion at the weekend.

The Frenchman admitted his team were "flat" at Emirates Stadium on Saturday as the Baggies surged into a three-goal lead after the break and held on for a shock win despite a late double from Samir Nasri.

Wenger has analysed the performance and now wants to draw a line under it as Arsenal focus on an important Champions League clash with Partizan Belgrade.

"The whole squad was very very low yesterday because we knew we had a good opportunity to win this game [against West Brom] and we didn't catch it," said Wenger.

"We have to stand up for what happened to us. It is our first defeat of the season and I think we have to take a perspective and a distance with that. We have done extremely well since the start of the season so now we will regroup and play well tomorrow night.

"Yes [it is good to draw a line under it] because we gave a lot physically against West Brom and it was not because we lacked effort [that we lost]," he added.

"I think we rushed our game and we didn't respect the priorities in our game and that's why we lost. But we gave a lot and I believe we will have a good game tomorrow because we are a good team."

Copyright 2014 The Arsenal Football Club plc. Permission to use quotations from this article is granted subject to appropriate credit being given to www.arsenal.com as the source 27 Sep 2010