Man Utd and Crystal Palace have agreed a £50m fee for Aaron Wan-Bissaka, but personal terms have not yet been finalised, Sky Sports News understands.
The 21-year-old defender left his hotel on Thursday morning to travel to Carrington in order to complete the second part of his medical ahead of his proposed move to United.
Wan-Bissaka's fee is expected to be £45m plus £5m in add-ons, which are understood to be based on appearances.
He flew to Manchester on Wednesday evening before completing the first part of his medical.
Wan-Bissaka is expected to sign a long-term contract at Old Trafford and would become Ole Gunnar Solskjaer's second signing of the summer, following the addition of Daniel James from Swansea.
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The England U21 international could become United's fifth most expensive signing of all-time behind Paul Pogba (£89m), Romelu Lukaku (£76m), Angel Di Maria (£59.7m) and Fred (£52m).
Wan-Bissaka had three years remaining on his contract at Selhurst Park and featured 39 times in all competitions last season as Palace finished 12th in the Premier League.
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Sky Sports News first reported United had rejected a £40m bid for Wan-Bissaka on June 8, with Solskjaer keen to bring in a right-back this summer following the departure of club captain Antonio Valencia.
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