Andre Agassi

Former tennis star Andre Agassi, and his wife, tennis star Stefanie Graf, pose together at a concert Sept. 26, 2009, at the Wynn Las Vegas hotel and casino, to benefit the Andre Agassi Charitable Association, which assists Las Vegas' young people. He is the winner of eight Grand Slam singles tournaments and an Olympic gold medal.

Andre Agassi greets the crowd while being honored during the "Evening with Legends" at the opening night festivities of the U.S. Open tennis tournament in New York, Monday, Aug. 31, 2009. Agassi, who suffers from sciatica, retired from professional tennis after a less-than-stellar performance in the 2006 U.S. Open.

Tennis star Andre Agassi, right, accepts the Clinton Global Citizen Award from former President Bill Clinton,Thursday, Sept. 27, 2007, in New York. Clinton honored people making a positive impact on changing the world.

Andre Agassi sports a necklace reading "Daddy Rocks" during his match against Benjamin Becker of Germany, at the U.S. Open Tennis tournament on Sept. 3, 2006, in New York. Agassi has two children with tennis star Steffi Graf, whom he married Oct. 22, 2001. He previously was married for two years to actress Brooke Shields.

Andre Agassi acknowledges the crowd after his loss to Benjamin Becker, of Germany, in the third round at the U.S. Open tennis tournament in New York, Sunday, Sept. 3, 2006. Born in Las Vegas in 1970, Agassi grew up on the tennis courts and began playing professionally when he was 16.

Andre Agassi, of the United States, eyes the ball during his match against Marcos Baghdatis, of Cyprus, at the U.S. Open tennis tournament in New York, Aug. 31, 2006. He won the U.S. Open in 19994 and 1999.

Andre Agassi of the United States pumps his fist after defeating Andrei Pavel of Romania at the U.S. Open tennis tournament in New York, Tuesday, Aug. 29, 2006.

Andre Agassi of the United States chases a ball from Italy's Andreas Seppi during second-round action in the Men's Singles at Wimbledon, Thursday, June 29, 2006. He won the Wimbledon title in 1992 and the French Open in 1999.

Andre Agassi blows a kiss to the crowd, after defeating Boris Pashanski of Serbia, in their Men's Singles, first round match on the Centre Court at Wimbledon, Tuesday, June 27, 2006. He won the Australia Open four times from 1995 to 2003.

Tennis player Andre Agassi speaks onstage at the Andre Agassi's 10th Grand Slam for Children show at the MGM Grand Garden Arena on Oct. 1, 2005, in Las Vegas. He founded Andre Agassi Charitable Association in 1994. It funds a charter school, a home for abused children and the programs of the Boys & Girls Club.

Andre Agassi, of the United States, returns to Roger Federer, of Switzerland, during the men's final at the U.S. Open tennis tournament in New York, Sunday, Sept. 11, 2005. Agassi has earned more than $30 million in prize money during his career.

Andre Agassi of the United States returns to Robby Ginepri of the United States during their mens semifinal match at the U.S. Open tennis tournament in New York, Saturday Sept. 10, 2005.

Andre Agassi of the United States and Robby Ginepri of the United States meet at the net following their mens semifinal match at the U.S. Open tennis tournament in New York, Saturday Sept. 10, 2005. Agassi won a gold medal for singles play at the 1996 Olympics in Atlanta.

Andre Agassi of the United States returns to Robby Ginepri of the United States during their men's semifinal match at the U. S. Open tennis tournament in New York, Saturday Sept. 10, 2005.