Arsenal manager Arsene Wenger has claimed that Real Madrid and Barcelona are currently the "two best teams in the world".
The Spanish rivals meet this Saturday and Wenger believes that the outcome of the fixture will go a long way to deciding who will be crowned La Liga champions at the end of the season.
"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," the Frenchman told the club's official website.
"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."
Madrid currently top the table and sit three points ahead of Barca.