Speaking to Manchester United's club media, Cunha said: "Yeah, wow. It's something that you always dream about [wearing the No. 10].
"I can mention many players that use this shirt. It's so easy for me. Of course, I think the one that I always think about when I see this number in this shirt for me was Wayne Rooney. He was someone that I grew up to watch him play and I have [watched] many games now.
"Then I swapped shirts with Marcus [Rashford, after a game] also, I have his shirt in my home. But, of course, we know many players used this shirt -- [Ruud] van Nistelrooy, [Zlatan] Ibrahimovic.
"It's the dream not only to use the shirt, but with all the history they have around the number, it's something beautiful that I have the privilege to do it.
"With every single number, it will be a pleasure to use the shirt. But, yeah, with this one it's something different. Then, of course, the responsibility is coming, and I hope I can do everything like goals, assists and help the team."