Manchester United have confirmed that Phil Jones has signed a five-year deal with the club following his move from Blackburn Rovers.
The Englishman underwent a medical at the club last week, before jetting out to the Under 21 European Championships in Denmark.
Jones has joined the 19-time league champions for a reported £20 million.
"Manchester United is delighted to announce it has signed an agreement with Blackburn Rovers for the transfer of Phil Jones," said a United statement.
"The player passed a medical in Manchester last week and has agreed a five-year contract.
"The deal will be completed once the player returns from international duty."
Liverpool were also said to be in the running for the 19-year-old, but lost out to United last week.
Blackburn, who brought Jones through their youth academy, said: "Much as we would love him to stay on with us, and we made all efforts to convince him to stay, Phil has to finally follow his heart."
"We are extremely happy with his contribution to our team and we wish him all the very best in his future endeavours."
Blackburn boss Steve Kean revealed the club offered to make Jones the highest-paid player in Rovers' history.
"The offer we made him was staggering for a 19-year-old, but it wasn't the money," Kean told Sky Sports News. "Phil wants to play Champions League football now and we're not at that level.
"I'm sure we will be in the coming years, and we gave it a real good try and made him a fantastic offer, but I understand why he wants to go now. He goes with our blessing and it's an opportunity for us to invest in other young players across other areas of the pitch.
"We were hoping he was going to be captain of our club and captain of England, he's a fantastic prospect and I'm sure he'll be an England regular very soon."