“Varane, for example, is an incredibly experienced player having won the World Cup and Champions League.
“At the same time, his great quality is his speed. He’s very, very fast and he can hold any striker that comes at him.
“So any defenders with the same kind of profile will be interesting. It doesn’t mean that it’s the only weakness that we need to address, it’s more about spirit and how we can finish actions that we are creating.
“There’s two types of defending. You can defend by attacking really well, and defend because you’re afraid of your opponent and you find a tactic to protect your defenders. When you do that you are on the wrong path for United.”