Newcastle have signed Javier Manquillo from Atletico Madrid for an undisclosed fee.
The Spaniard has previous Premier League experience with Sunderland and Liverpool.
Manquillo, 23, has put pen to paper on a three-year contract and is the Magpies' fourth summer signing.
"I'm very happy to be here," Manquillo told the club's official website. "From the first moment that Rafa Benitez called me I just knew that I had to come here, to such a big club."