"I am ready to sweat blood for Manchester United. There is a winning mentality and at United success is expected season after season. I am aware I came with a big price tag and I am ready to prove this season just what I can do.
"We have a chance to make it four titles in a row and that means making history if we succeed. I would not say my playing style is laid back, it is just a different style."
With the transfer of Cristiano Ronaldo to Real Madrid and Carlos Tevez to Manchester City, Berbatov and Rooney have to share the majority of the responsibility to score goals regularly.
Berbatov further said that he would be more prolific in the near future, which would help Man U be the trophy winning side this season.
"I like time on the ball and I like space. If I can get that, then I know I can free up players like Nani and Wayne Rooney, who do lots of running," said Berbatov.
"I am ready to sweat blood for this club.
"I want to create and score goals and I know I can be part of a trophy-winning team this season," he added.
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