The fullback has returned to the Premier League, having agreed to join the Magpies from Atletico Madrid on a three-year contract.
Newcastle United have confirmed the signing of full-back Javier Manquillo from Atletico Madrid.
The 23-year-old has signed a three-year contract with the Premier League club after passing a medical.
Manquillo, who has travelled to link up with Rafael Benitez's squad for their pre-season training camp in the Republic of Ireland, will reportedly cost £4.5million.
"I'm very happy to be here. From the first moment that Rafa Benitez called me, I just knew that I had to come here, to such a big club," he told Newcastle's official website.