The US Open of tennis has begun and has brought quite an array of style to the courts -- Capri pants, cutoff shirts, bedazzled shorts, and downright sexy skirts.

This NY Times article outlines just what exactly the celebs of the tennis world are wearing. And it seems like people actually care, as Rafael Nadal and Roger Federer participated in a friendly match on East 54th Street in New York just to preview their outfits for the tournament.

Tennis isn't new to fashion statements -- Bjorn Borg and Jimmy Connors both made brave clothing decisions in the 70's. A few years ago, Serena Williams wore quite a provocative outfit, which was equipped with "bedazzling" on her rear-end. And Anna Kournikova opened up the sex-appeal aspect of tennis fashion.

According to the article, Americans spend about $534 million a year on specialty tennis clothes. That's certainly a lot of money to look good getting sweaty. But hey, what's wrong with lookin' good?