Barcelona are feeling the heat ahead of Madrid clash

They may have breezed past all before them at the Nou Camp this season, but the first team to stop Barcelona scoring at their famous home, Chelsea, have come in for some criticism from both the Barca players and the Catalan press.

Xavi in particular complained about the London club's apparent ‘strong arm tactics' after team-mate Andreas Iniesta took a Michael Ballack elbow in the face.