The US Open starts on Monday and the world's top two, Roger Federer and Rafael Nadal, square up in New York

Nadal entertains the crowd as he plays an exhibition against Federer on a Manhattan street

Federer and Nadal have met in the last two Grand Slam finals and will hope to make it three in a row at Flushing Meadows

"I am happy to be in New York, it's one of my special goals of the year," says Nadal

"I am excited that Rafa has come along, playing very consistently at a young age," says Federer

Meanwhile, elsewhere in New York, Andy Roddick enjoys an in-store appearance with doubles star Murphy Jensen

There is no rest for Roddick, who then meets up with Andre Agassi to show off his culinary skills

James Blake gets down to business with some serious carbo-loading

Maria Sharapova arrives to join Roddick, coincidentally, and the rest at the W Hotel