Newcastle are quoted to have paid around £3.5 million for the midfielder's services, although the fee could rise up to £5.25 million depending on appearances.
"He's only 18 and he's got a great future. He's willing to learn" commented Leeds legend Norman Hunter. "Leeds are my first club, but being a Geordie, Newcastle are the club I follow and I'm quite happy that if he's going anywhere, he's going there."