2. Andy Roddick

Born: 30/8/82 Nationality: American Seeded: 2 World ranking: 4 Wimbledon best: Runner-up (2004) Recent record: 2004: Runner-up 2003: Semi-finals 2002: 3rd round

Andy Roddick will again prove a mighty force on Wimbledon's grass with the biggest serve the game has ever seen, but his progress has shown signs of stalling in the last year.

The American lost his US Open title with a quarter-final defeat to Joachim Johansson in September and was then humiliated by Lleyton Hewitt at the Masters Cup.

That prompted a surprise change of coaches, with Brad Gilbert being replaced by the lower-profile Dean Goldfine.

Their partnership has produced titles in San Jose and Houston and a semi-final place at the Australian Open.

But Hewitt again proved too good in Melbourne, as he later did at Indian Wells, before Roddick suffered his usual lack of success on clay.

He was clearly happy to get back to winning ways on grass with a third straight Queen's title, while at Wimbledon only Federer has stood in his way in the last two years.

And despite slipping a couple of places in the world rankings, Roddick is again the best bet to upset Federer at SW19.