Varane has made a playing return this week after recovering from a knee strain.
"I think that it was a fairly sensitive operation. You change the support system and even the way you run. That's why it was important to be careful and the whole process took some time," he said.
On new coach Carlo Ancelotti, Varane added: "There's no point comparing Mou with Carlo. They have very different styles, but I get on well with the new manager."
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