Arsenal have confirmed on their official website that midfielder Isaac Hayden has left the club to join Newcastle United on a permanent basis.
The 21-year-old has agreed a five-year deal at Newcastle United and has already teamed up with his new teammates at their training camp in Ireland.
Boss Rafa Benitez described the youngster as a "young and strong" midfielder who is hungry to succeed.
"He is also a player who can play in different positions, which is very useful," the Spaniard told the club's official website.
"Isaac is a young, strong English player with fantastic potential but also with some experience already of the Championship. We welcome him to the Club."