Barcelona midfielder Xavi believes that Cristiano Ronaldo was "wrong" to criticise referee Alberto Undiano following El Clasico on Sunday evening.

Real Madrid forward Ronaldo claimed that the Spanish referee helped Barcelona to claim all three points at the Bernabeu after awarding the visitors two penalties in the second period.

However, Xavi believes that his side "were superior" to Los Blancos and insisted that Undiano did not make a mistake for any of the three penalty decisions.

"Cristiano is wrong and his criticism is harsh. Barca were superior, we played better than Real Madrid and it shows in the result," Xavi told reporters.

"As far as I'm concerned, they were all penalties, including the one from Dani Alves on Cristiano, from what I could see on the pitch."

The two sides meet again in the final of the Copa del Rey next month.