Jurrien Timber could be handed an ideal shirt number if he completed a transfer to Manchester United this summer, though it would depend on the futures of Eric Bailly and Phil Jones.
Erik ten Hag has got plenty of positions to fix in his new squad this summer and while the midfield is a priority, the heart of defence needs some serious reinforcement as well.
United have just finished up their worst ever Premier League campaign after only managing to win a measly 58 points, with their porous back-line being a key reason.
Despite spending close to £200million on centre-backs in recent years, United remain frail defensively with even the arrival of four-time Champions League winner Raphael Varane failing to fix it.
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