DNA takes a look at the best acquisitions made by football clubs in Europe over the summer.

David Villa (From Valencia to Barcelona)

Barcelona signed David Villa, one of the most coveted strikers in the world, from Valencia, for €40 million before the 2010 World Cup. 'El Guaje's' heroics for Spain in South Africa made it seem like a bargain price. Villa is certain to add extra fire to an already formidable Barcelona attack of Lionel Messi, Andres Iniesta and Pedro Rodriguez.