Jesse Levine, Martina Navratilova, Billie Jean King, Sir Elton John, Melanie Oudin, Andy Roddick and Anna Kournikova attend the Advanta WTT Smash Hits event at the Kennesaw State University Convocation Center on October 12, 2008 in Kennesaw, Georgia.
Prince Williams/FilmMagic.com
Professional Tennis Player Andy Roddick and Recording Artist Sir Elton John attend the Advanta WTT Smash Hits event at the Kennesaw State University Convocation Center on October 12, 2008 in Kennesaw, Georgia.
Ben Rose/WireImage.com
Former Tennis Professional Martina Navratilova, Former Tennis Professional Anna Kournikova, Recording Artist Sir Elton John and Professional Tennis Player Andy Roddick attend the Advanta WTT Smash Hits event at the Kennesaw State University Convocation Center on October 12, 2008 in Kennesaw, Georgia.
Ben Rose/WireImage.com
Recording Artist Sir Elton John, Former Tennis Professional Anna Kournikova and Professional Tennis Player Andy Roddick attend the Advanta WTT Smash Hits event at the Kennesaw State University Convocation Center on October 12, 2008 in Kennesaw, Georgia.
Ben Rose/WireImage.com
Former Tennis Professional Anna Kournikova, Recording Artist Sir Elton John and Professional Tennis Player Andy Roddick attend the Advanta WTT Smash Hits event at the Kennesaw State University Convocation Center on October 12, 2008 in Kennesaw, Georgia.
Ben Rose/WireImage.com
Recording Artist Sir Elton John and Professional Tennis Player Andy Roddick attend the Advanta WTT Smash Hits event at the Kennesaw State University Convocation Center on October 12, 2008 in Kennesaw, Georgia.
Ben Rose/WireImage.com
Jesse Levine, Martina Navratilova, Billie Jean King, Sir Elton John, Anna Kournikova, Melanie Oudin and Andy Roddick attend the Advanta WTT Smash Hits event at the Kennesaw State University Convocation Center on October 12, 2008 in Kennesaw, Georgia.
Ben Rose/WireImage.com
Andy Roddick of the United States returns to Serbia's Novak Djokovic in a Men's singles match at the Australian Open Tennis Championship in Melbourne, Australia, Tuesday, Jan. 27, 2009. (AP Photo/Mark Baker)
AP
MELBOURNE, AUSTRALIA - JANUARY 27: Novak Djokovic of Serbia towels down between games in his quarterfinal match against Andy Roddick of the United States of America during day nine of the 2009 Australian Open at Melbourne Park on January 27, 2009 in Melbourne, Australia. (Photo by Cameron Spencer/Getty Images) *** Local Caption *** Novak Djokovic
Getty Images
Novak Djokovic of Serbia uses ice wrapped in a towel to cool down in his game against Andy Roddick of the US during their men's singles tennis match on day 9 of the Australian Open in Melbourne on January 27, 2009. Roddick powered into the Australian Open semi-finals when defending champion Novak Djokovic pulled out with illness trailing 7-6 (7/3), 4-6, 2-6, 1-2. AFP PHOTO / GREG WOOD (Photo credit should read GREG WOOD/AFP/Getty Images)
AFP/Getty Images
During a time when so many top athletes are addicted to Twitter, tennis great Pete Sampras tells us why you'll never find him sending out updates on the social networking site. Also, hear what this former No. 1 ranked player has to say about the state of tennis today, and why the United States is no longer dominating the sport. Sampras, by the way, is second all-time in earnings, making over $43 million as an active player. 
As Tuesday's 
Tennis is a funny game. One minute you're up against match point, with your tournament hopes hanging by a thread, and then a few points later you're suddenly running away the momentum.
There are dominant performances on the big stage, and then there are 
Andy Murray
It was 
