Inter striker Zlatan Ibrahimovic has warned Manchester United that he is out to show Wayne Rooney and Dimitar Berbatov who's boss when the two sides clash in the Champions League.Inter and a sold-out San Siro welcome the current World and European Champions on Tuesday night in what is being billed as the game of the season so far.Ibrahimovic, who has been outstanding for the Nerazzurri, is ready to rumble with the Red Devils and he cannot wait to beat them black and blue."I am always ambitious and I want to show myself that I am better than Rooney and Berbatov," Ibrahimovic is quoted as saying in Tuttomercatoweb.com."The United strikers are exceptional, but I want to be better than them."'Ibra' is full of confidence and he admits he will take inspiration from former Milan legend Marco Van Basten in order to motivate himself for the United clash."Van Basten was my favourite striker and he was my idol when I was young," added the striker."It's true that [Fabio] Capello used to show me videos of Van Basten and I am still learning today."All I want is to score against them and help my team by giving a good contribution."Source: goal.com