The French great told the Mirror: "It is not the kind of thing you ask for. You have to earn it, but you need someone to drive you.
"I'm very proud of playing that role, it's great. Alex Ferguson gave me freedom on the pitch, but I needed time. He created this role in what he had seen in me, in the player I was and personality I had.
"It also depends on the tactics of the team, and what he expects from players."