Andy Roddick tries to keep U.S. in the game

Behind Roddick in the Assn. of Tennis Professionals rankings at No. 8 is fellow American James Blake, who is bypassing the Countrywide tournament. After that, the next highest-ranked American player is Mardy Fish, at No. 40, who will play at Countrywide.

America hasn't had players dominating men's tennis since Andre Agassi and Pete Sampras battled back and forth in the 1990s and in the early part of this decade. Since Sampras retired after winning the U.S. Open in 2002, only two Americans have won Grand Slam event titles -- Agassi at the 2003 Australian Open and Roddick at the 2003 U.S. Open, his only Grand Slam event victory.

Federer, from Switzerland, has won 12 Grand Slam events -- beating Roddick in three of those finals. And Nadal, from Spain, has won five Grand Slam events.

Why are Americans faring so poorly in men's tennis?

"It's a global sport now, it's very competitive. It's not easy out there," Agassi said recently. "We rightfully should have somebody atop the game and I think we still have some opportunities for that with the generation that we're in, plus the younger ones coming up.

"We have to get to the grass roots, though. We have to get out here on the courts with these young ones and you have to get them interested in the game."

Over the last few years, the U.S. Tennis Assn. has devoted more resources to doing just that. Former USTA president and current board member Franklin Johnson said it has been hard for Americans to crack the top of the tennis rankings because Federer and Nadal are so tough to beat, and in response the USTA began an elite player development program in 2007 based in Carson and Boca Raton, Fla.

"As the national governing body of tennis it's our responsibility to do this and in the past we pretty much deferred to the coaching community," Johnson said. "Now the USTA is saying, 'We need to take more accountability and responsibility ourselves and we need to increase the resources that we're putting toward that.' "

The program, headed by Patrick McEnroe, differs from the USTA's regular player development programs because it focuses on a select group of up-and-coming players. Johnson said it also assists players who can't permanently move to Carson or Boca Raton.