Reports in Spain claim that Real Madrid president Florentino Perez is upset by the unrest created by the departure of Mesut Ozil to Arsenal.

Ozil was sold to the Gunners for a fee in excess of £40m, in a deal believed to have helped fund the purchase of Gareth Bale.

Reports in Marca claim that Ozil demanded too much money from Madrid and forced through the move himself, but newspaper El Confidencial is reporting that these stories may have been placed by the club in order to convince players and fans that the midfielder's exit was justified.

It is curious that Ozil chose Arsenal, who have a stringent wage cap, over a side that were offering him one of the squad's biggest salaries.

Although Madrid seem to have a limitless transfer budget each summer, having twice broken the transfer record - first for Cristiano Ronaldo and now Bale - the club is occasionally obliged to recoup some of the funds they dish out.

The sale of Ozil was believed to have angered Madrid's top players, with Ronaldo admitting as much to his team-mates and insisting that no player will be able to link up with his style of play quite like the German international.

Outspoken Borussia Dortmund manager Jurgen Klopp even had an opinion on the situation, insisting that no one in football knows why Madrid would be willing to part with a player considered one of the world's best.

This will no doubt put both Perez and Bale under increased pressure to show that the deal was worth it.

Marca also claims that Perez is encouraging players to stop talking about Ozil and get on with the task in hand. Meanwhile, Arsenal fans are awaiting Ozil's debut with mounting excitement.