Manchester United fullback Alexander Buttner admits the temper of manager Sir Alex Ferguson is something new.

The Dutch left-back, 23, has been amazed at the way Fergie dishes out his famed hairdryer treatment - including to some of United's biggest stars.

He said: "I've never met anyone who gets as utterly furious as the manager. Nothing like that has ever been seen in Holland.

"The bizarre thing is that, no matter who he has a go at, they will have respect for him.

"Ferguson makes no distinction. It doesn't matter if it's Wayne Rooney, Paul Scholes or Nani.

"If there's something he does not like he will let fly at you.

"Above all, if you make a mistake near the end of a game or before half-time because you've lost concentration. That's something he absolutely hates."