Back at United after three impressive seasons at feeder club Royal Antwerp in Belgium, Dong said: "I am trying to prove I am good enough to play for Manchester United.

"I need to train hard and work hard, but that is no problem for me.

"Like every Chinese player, it is tough when you move to a new country because of the language and the fact it is a different culture.

"But, while those three years at Antwerp were hard, in a way they may help me because I am used to playing in Europe now."