MEN Sport understands the position is not a priority for United this summer, they have been heavily linked with players such as RB Leipzig's Dayot Upamecano and could be in the market for a centre-back if they offload some of their current defenders.
Chris Smalling, Marcos Rojo and Phil Jones are all surplus to requirements at the club right now. United are also considering a move for left-back Alex Tells of FC Porto, though a right-winger and, more specifically, Borussia Dortmund's Jadon Sancho remains their priority.
And Cole, speaking exclusively to MEN Sport, believes United have already invested heavily enough in their defence and doing so again in a tricky summer window would be a mistake.
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