While Ronaldo is still attracting all the headlines as he starts the job of proving he was worth the world record £80m fee Real Madrid paid United for him, Valencia has made a somewhat lower key arrival at Old Trafford.

The Ecuador star might have cost Sir Alex Ferguson £17m but that fee is dwarfed by the vast amounts that have been shelled out this summer by both Real and, rather closer to home, Manchester City.Yet, with Ferguson declaring his close-season transfer business over, it is to Valencia the Red Devils' faithful will look to fill the enormous gap Ronaldo has left.

It is not a position the South American is entirely comfortable with and one he is pretty eager to distance himself from.

"I don't make any comparisons between myself and Cristiano," he said.

"Obviously Cristiano did very well here but, when I had my first conversations with Manchester United, it was never said I was coming here as a replacement for him.

"What I want is to make sure I do my own job and concentrate on the things I do well. That is the main thing for me because I have a real desire to be a success here."