Krylia Sovetov attacker Sergey Pinyaev admits a return to Manchester United may be blocked.

Pinyaev has been spending time at United since he was a junior player, having had a series of 'internships' with the club's academy.

However, now that he is a first teamer with Krylia, Pinyaev admits a return for more trials at United is unlikely.

“The general director of Krylia has already said that internships at Manchester United cannot take place, since I signed a professional contract. Internships are much more difficult to do. In a year and a half I am 18 years old, there is not much time left," said the 16 year-old.

Pinyaev hit his first goals for Krylia in the Russian Cup last week.