Manchester United's first choice defensive target this summer is still Jurrien Timber from Ajax.
The Red Devils are very eager to add a fast defender who can help them play in the ideal style of new manager Erik ten Hag.
The 20-year-old can play at right-back and defensive midfield as well.
However, Manchester Evening News suggests United are also talking with Portuguese defender David Carmo as a possible back-up.
The 22-year-old Braga defender has been the subject of two rounds of talks between the two clubs.
Carmo has linked to Liverpool in 2020-2021, and has a £34 million release clause in his contract.