Espanyol are demanding an investigation into Barcelona defender Gerard Pique after this week's Copa del Rey defeat.

There have been additional complaints made about remarks Sergio Busquets made as well as chants heard from the Camp Nou crowd.

Pique is in hot water after he labelled the club 'Espanyol de Cornella'.

"They are from there, right?" he joked

Espanyol were unhappy with the Spanish defender making such comments and made their feelings clear in a statement.

"We consider that any demonstration in a clearly derogatory tone towards these cities, such as those uttered by Mr Pique towards the city of Cornella, flirt very dangerously with xenophobic attitudes," the statement read.

Busquets caused a stir of his own with his post-match comments.

"They celebrated in Cornella as if they had progressed to the next round, but ties last 180 minutes," he explained. "We put them in their place."