Arsenal have completed the signing of Cristhian Mosquera from Valencia in a deal worth at least £13m.

Mosquera has joined up with his new team-mates in Singapore after agreeing a five-year contract.

The defender said: "There's been a lot of hard work behind all of this.

"It's an opportunity that came up and I couldn't let it pass me by. I'm joining a historic, massive club. When you arrive here with your family, you really feel the greatness of this place."

The deal for the 21-year-old, who underwent a medical in London, could rise with performance-related add-ons.

Mosquera had entered the final year of his contract at Valencia and turned down offers of a new deal because he wanted to join Arsenal.

Valencia's statement confirmed that Mosquera only wanted to join Arsenal.

"This decision comes as a result of the clear and unequivocal desire expressed by the player, who has made it clear he did not wish to renew his contract with Valencia CF and expressed his intention to join Arsenal FC exclusively," the Spanish club's statement read.