From Barcelona to 'Farcelona': What has happened to the best team in the world?

The Catalans lost 3-1 at home to bitter rivals Real Madrid in the Copa del Rey on Tuesday, less than a week after losing badly at AC Milan - so just what is amiss at Camp Nou?

If there is one thing Barcelona fans enjoy more than beating Real Madrid, it is defeating Jose Mourinho. And if there is one thing those same supporters like less than being beaten by the capital club, it is losing to the Madrid team coached by the Portuguese. Tuesday night's loss, then, was particularly painful.

Following their latest disappointment, Barca have gone from being the world's best to a team in turmoil - seemingly in the space of just a few weeks. Last Wednesday's damaging defeat at AC Milan set the alarm bells ringing for the Catalan club. By Tuesday night, the fires were blazing. "There is no point in dramatising," stand-in coach Jordi Roura remarked after losing to Madrid. Few fans will share that sentiment.

So where has it all gone wrong for Barcelona?