Shaw insists he does not feel the pressure of replacing Patrice Evra, following his £30million move from Southampton. But the England star admits he is under no illusions that he must impress his new manager, Louis van Gaal.
He said: "When I arrived everyone told me how big the club is.
"You don't realise until you come on tour how big it is and how big fanbase is. It's crazy. I don't feel pressure filling in for Evra. He has been great for ten years and hopefully I can carry it on.
"Of course, I have to prove myself but I try not to focus on the pressure. I focus on my own game.
"With a new manager I know I have to impress in training.
"Manchester United is biggest club in world and will push me to the best. I know the club will improve me and that's why I am here."
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