MELBOURNE, Australia -- Andy Roddick's Grand Slam drought continues after the American was beaten 6-3, 6-4, 6-4 by Stanislas Wawrinka in the fourth round of the Australian Open on Sunday.

Roddick, who was the last American in either the men's or women's singles draw this year, won his first major at the 2003 U.S. Open.

Since then, the closest he's come to winning his second was as a three-time runner-up at Wimbledon in 2004, 2005 and 2009 and as the losing finalist at the 2006 U.S. Open.

In the quarterfinals, Wawrinka will play Roger Federer, his sometime Davis Cup teammate and who he shared the Olympic gold medal with for Switzerland in doubles at Beijing in 2008.