Martin Zubimendi has a well-publicised £51million release clause in his contract with Real Sociedad, yet Arsenal will pay over the odds to sign the Spanish midfielder this summer

A separate report from Marca suggests that Real Madrid landing on the scene has 'changed the landscape' of the situation. Arsenal, meanwhile, are said to be 'concerned' that Zubimendi will turn his back on them and hold out for a move to the Bernabeu.

There has been a huge twist in Arsenal and Real Madrid's battle for Real Sociedad and Spain midfielder Martin Zubimendi as the summer transfer window heats up