The 36-year-old has returned to United for his second spell after leaving Juventus.
And van de Beek says the five-time Ballon D'Or winner is exactly what United need.
Speaking to United hero Rio Ferdinand on his FIVE podcast, the Netherlands international said: "It's fantastic. To be with these players on the pitch is fantastic, also to train with them, everything.
"I think that's what we need, winners. I'm really positive about us this season. I think we can make big steps now.
"Of course, the level goes up, for sure. You see that [in training].
"If good players come to the team, the level goes up. It's strange because you train with maybe 24 players, but any one of those good players, they can make a difference."
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