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Juan Mata and Ander Herrera's telepathy improved Manchester United last season but the Spanish duo were not always on the same wavelength in La Liga.

During an amusing interview with MUTV in the United States, Mata recalled the time former Real Zaragoza midfielder Herrera was sent off for a sliding tackle on him in 2010.

Herrera's red card was later rescinded and Mata, who was then playing for Valencia, claimed Herrera was an annoying opponent who always talked during games.

Basque Herrera protested his innocence over the incident, though.

"I was sent off against him (Mata), because he dived," Herrera explained.

"I just tried to make the game difficult for my opponents, of course. And I know that he was a very important player for Valencia so I tried to make the game as hard as possible. And I was sent off."

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"They took the red card away though," Mata replied.

"Yes because it was not fair," Herrera insisted.

"I will show you the video and you will see how he dived."

Here is the video:

See pictures from United's win over Barcelona below