Manchester United fullback Alexander Buttner admits manager Sir Alex Ferguson's temper is something he's still getting used to.

While Buttner admits it's hard to understand his manager's ­Glaswegian accent, he still gets the message when Fergie switches on his famous hairdryer.

"The dialect of some people here is really hard to understand and I just lose the plot completely ­sometimes.

"I had that with Mr Ferguson. I just learned to answer 'Yes' to ­everything he said to me without knowing what he was talking about.

"He doesn't always say nice stuff. In fact, I have never worked under a manager who goes as ballistic as Mr Ferguson.

"I have never seen a temper like his before - and he doesn't care who he has a go at.

"He makes no exceptions for Wayne Rooney or Paul Scholes or Nani. He goes full blast at everyone and he is razor-sharp."