Manchester United have already been active in the transfer market this summer, cashing in on a full-back surplus to requirements. Left-back was the one position Manchester United lacked options in 2023/24, yet Erik ten Hag was not convinced by Alvaro Fernandez. Fernandez was sent on loan to Spanish side Granada, before Benfica moved in January to sign him on loan for them. At the end of last month, Benfica activated a clause to sign Fernandez on a permanent basis for a fee of £5 million. READ: Manchester United confirmed signings, transfers in, out, loan exits, releases for 2024/25Alvaro Ferna…