Manchester United has agreed to pay between £15m and £20m for Bayern Munich defender Noussair Mazraoui.
The transfer, however, hinges on the sale of right-back Aaron Wan-Bissaka, who is needed to fund the deal.
Mazraoui was initially set to join West Ham, but that deal fell through, and the London club is now aiming to acquire Wan-Bissaka.
The move is likely to bolster the Red Devils' defense, especially with concerns about the injury-prone Luke Shaw at left-back.
