Arsenal have confirmed left-back Nacho Monreal has completed a permanent move to join La Liga side Real Sociedad.
The 33-year-old had just one year left on his contract in north London and has been linked with a move away following the arrival of Celtic's Kieran Tierney.
Arsenal have now confirmed that Monreal will leave the club with immediate effect, ensuring that the former Spain international will not feature in the north London derby on Sunday.
Monreal joined the club from Malaga in 2013 and has gone on to make 251 appearances across all competitions, winning three FA Cups and the same amount of Community Shields during his time at the club.