Manchester United have prioritised Jurrien Timber as their defensive target and have also held talks with Portuguese defender David Carmo.
The Manchester Evening News understands although Ajax centre-back Timber is manager Erik ten Hag's preferred choice United have had two rounds of discussions with Braga centre half Carmo's representatives. Carmo is believed to be considered a fall-back option.
Timber, 20, is capable of playing at right-back as well as centre-back and United intend to strengthen both positions with Aaron Wan-Bissaka available for transfer.