Diogo Dalot will have his Manchester United medical this week ahead of a proposed move from FC Porto, according to Sky sources.
Jose Mourinho has been in the market for a right-back and looks set to land Dalot after the two clubs agreed an undisclosed fee for the 19-year-old.
Dalot, who is understood to have a €20m (£17.4m) release clause in his contract, made his first-team Porto debut in February, and is now set to leave the Estadio Dragao to link up with compatriot and former Porto boss Mourinho.
The defender played out of position for Porto at left-back in the Champions League knockout stages against Liverpool earlier this season.
He is a product of Porto's academy and won the U17 Euros with Portugal in 2016.
Manchester United are also closing in on the signing of Shakhtar Donetsk midfielder Fred who had his medical in Manchester on Monday, ahead of the completion of a £50m transfer.