Manchester United have finalised the signing of Amad Diallo from Atalanta for a fee which could rise to £37 million ($50m) with add-ons.

The deal was agreed back in October on the final day of the summer transfer window, but remained on hold as the club had to secure a work permit and agree personal terms with the winger.

This week, Manchester United obtained a Governing Body Exemption for Diallo and he becomes the first player to be signed and registered under the new FA rules which have been implemented post-Brexit.

He has now signed a deal which will keep him at United until June 2025, with the option for a further year. He has now flown to Rome to obtain his Visa after which he will fly to Manchester to join up with his new team-mates. Diallo has made two appearances for Atalanta’s first team this season.

Speaking of his arrival, United manager Ole Gunnar Solskjaer said: “As a club, we have followed Amad for a number of years and having watched him myself, I believe he is one of the most exciting young prospects in the game.

“Manchester United has such a proud history of developing young players and everything is in place to enable Amad to reach his potential here. “It will take time for him to adapt but his speed, vision and fantastic dribbling ability will stand him in good stead to make the transition. He is a player with all of the raw attributes that are needed to be an important player for Manchester United in the years to come.”

Diallo said: “After waiting since the summer, it is finally a dream come true to complete my move to Manchester United. I am hugely ambitious and there is so much that I want to achieve in the game; when I spoke to the manager I knew that I had joined the perfect club.

“This is a really exciting squad with so many great players, I can promise that I will work hard every day to learn from them and give everything to develop my game. The coaches have been fantastic since I signed, we have been in touch regularly and they have already given me a lot of great advice.

“I have had time to prepare for this move, both physically and mentally, and I have worked really hard to be ready to make the step up to this amazing club.”