The agent of Alexander Buttner says the Manchester United fullback has proved himself Premier League class.
Despite his lack of minutes, Buttner has certainly impressed when given his chance.
Aleksandar Bursac admits the defender's future is clouded at United, but is confident he won't be short of offers should he decide to leave.
"He has shown that he can handle the level of the Premier League. And that has not gone unnoticed by other clubs. If Büttner does not make it at United, he has proven to be able to play in the Premier League."
