Newcastle have completed the signing of midfielder Mikel Merino on a permanent basis for an undisclosed fee.
The 21-year-old Spaniard joined the club in the summer on loan from Borussia Dortmund but has now signed a five-year-deal at St James’ Park.
Manager Rafael Benitez said: “He has made a great impression at the club. He has confidence, but he is still young and has things to improve.”
Merino has played in all of Newcastle’s Premier League games this season.