Manchester United are likely to be in the market for a new centre-back in the summer transfer window. The Red Devils have had their fair share of injuries at the back, with numerous defenders missing out on game time this season. In addition, Raphael Varane and Jonny Evans will be out of contract in the summer, while Victor Lindelof could go up for sale. With all this in mind, it looks as though Manchester United could prioritise reinforcements at the back. And according to Fabrizio Romano, the Red Devils are leading the race for one of the Premier League’s best young defenders. Manchester Uni…