By Joe Brewin

Arsène Wenger believes Barcelona and Real Madrid are at the pinnacle of world football right now.

The duo will contest El Clasico on Saturday at the Bernabeu, with Real Madrid currently leading the way at the top of La Liga by three points.

Jose Mourinho’s side also have a game in hand over reigning champions Barcelona and Wenger admits he is relishing the clash.

“It's certainly the game at the moment between the two best teams in the world, so that's the game we want to see,” he said.

“Nobody wants to lose it. The nerves maybe play a big part because the pressure is always massive.

“Overall it is an opportunity for Real Madrid to show how much they have reduced the difference between them and Barcelona. We know already today that these two games will decide the title in Spain.”

Wenger is no stranger to the abilities of Barcelona, having been knocked out of the Champions League by the Catalan giants for the past two seasons.

Arsenal came close to ousting Pep Guardiola’s side last time around and Wenger believes there is one, simple decision to make when facing them.

“The key is to decide whether you play very high or very deep,” he said. “You have to attack them, expose them defensively and Real Madrid have the opportunity to do that. I am sure they will.

“In a pre-season game they decided to play very high and they gave many problems to Barcelona. But can you do that for 90 minutes against Barcelona?

“For the few times you do not win the ball very high you are exposed to [Lionel] Messi's runs. That's what they have to decide. Or do they start with a really cautious approach and have a go at them in the second half?”

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 7 Dec 2011