The 31-year-old defender has been out of action since April following a muscle injury during a training session. He made just 31 appearances last season, and his continued struggles with fitness have ruled him out of Euro 2024.
United have set their eyes on Bayern Munich's Matthijs De Ligt as Erik ten Hag is seeking a reunion with the centre-back, who is reportedly valued at £42million. Maguire meanwhile, is thought to have admirers in Italy as he enters the final year of his contract. Greenwood spent last season on loan at Getafe where he caught the eye of clubs including Barcelona and Juventus. With just one year left on his contract, United are keen to cash in to avoid losing out next summer. Sancho meanwhile, also enjoyed a season on loan at Borussia Dortmund after a public falling out with Ten Hag.