United confirmed the news with a short statement on their club website saying the medical would enable Pogba to “finalise his transfer from Juventus to Manchester United”.
Pogba, who was part of the France side that lost to Portugal in the Euro 2016 final last month, tweeted enigmatically: “When too many people talk nobody understands – talk very soon.”
Early signs that a deal was imminent came when Pogba did not travel with the Juventus squad to London for their 3-2 friendly win over West Ham United on Sunday.
Media reports said he had already arrived in Manchester.
Pogba, who has won four Serie A titles with Juventus and reached the 2015 Champions League final, has been courted assiduously by United, who received just 1.5 million pounds when he left in 2012.
They faced reported competition from European champions Real Madrid, amid speculation that Pogba would have preferred to link up with his compatriot Zinedine Zidane at the Bernabeu.
But Madrid, who have paid huge money for stars like Gareth Bale and Cristiano Ronaldo in recent years, did not pursue the player, leaving Pogba with a choice between moving to United or remaining with Juventus.
A reported initial £86 million bid was rejected by Juventus.
Pogba’s arrival will secure the four signings Mourinho had set his sights on when he replaced Louis van Gaal at the end of last season.
Pogba will join young Ivorian defender Eric Bailly, Armenian international Henrikh Mkhitaryan and veteran Swedish striker Zlatan Ibrahimovic in arriving at Old Trafford this summer.
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