
By Associated Press
U.S. Open champion Andy Murray pulled out Tuesday because of a chronic back injury and will be replaced by a lucky loser.

By Associated Press
The U.S. Open champion met with specialists this week and has opted to now focus on preparing for the start of the grass-court season and Wimbledon next month.

By Andrew Dampf - Associated Press
Murray retired from his second-round match with Spanish opponent Marcel Granollers at the Italian Open on Wednesday with lower back pain and considers himself doubtful for the French Open.

By Joseph Wilson - Associated Press
Williams beat Maria Sharapova 6-1, 6-4 in the final Sunday to retain her No. 1 ranking and collect her 50th career title, while Rafael Nadal eased by Stanislas Wawrinka 6-2, 6-4 for his fifth title since returning from a knee injury.

By Pete Iacobelli - Associated Press
Serena won her 14th straight match in Charleston with a 6-1, 6-2 victory over Venus Williams — the most one-sided result in the sisters' long, intense rivalry.

By Sandra Harwitt - Associated Press
The United States trails Serbia 2-1 in a Davis Cup quarterfinal after the top-ranked doubles team of Bob and Mike Bryan lost to Serbia's Nenad Zimonjic and Ilija Bozoljac 7-6 (5), 7-6 (1), 5-7, 4-6, 15-13 on Saturday.

By Beth Harris - Associated Press
Nadal improved to a career-best 17-1 on the year, including 14 straight match wins. He's won three titles — two on clay while runner-up in another on his favorite surface — since returning from a left knee injury.

By Beth Harris - Associated Press
Del Potro snapped his own four-match skid against Djokovic, who had beaten the Argentine in eight of 10 career meetings.

By Beth Harris - Associated Press
"Now it's a little bit difficult because I'm playing and Alex is playing," Kirilenko said Wednesday after winning her quarterfinal match at the BNP Paribas Open. "We are just in the period of talking what's the best. We will find the right day."

By Associated Press
The Kastles announced Tuesday that Hingis will join the club on July 15, two days after she is enshrined in the International Tennis Hall of Fame in Newport, R.I.

By Rachel Cohen - Associated Press
The 11-time Grand Slam champion feels encouraged about his comeback from injury after the past week, when he finally felt he could move freely. He dominated fellow Spaniard David Ferrer, the world's fourth-ranked player, to win the Mexican Open on Saturday.

By Tales Azzoni - Associated Press
Nadal thrust his arms into the air and pumped his fist after a long ball by David Nalbandian made him the champion of the indoor clay-court tournament for the second time. The Spaniard also won the event in 2005.
By ASSOCIATED PRESS - Associated Press
Richard Gasquet of France has been replaced by Gilles Simon for singles on Friday against Argentina in the Davis Cup quarterfinals. Published April 4, 2013
By ASSOCIATED PRESS - Associated Press
Editors: Published April 4, 2013
By ASSOCIATED PRESS - Associated Press
John Isner will play top-ranked Novak Djokovic in the first match Friday of the Davis Cup quarterfinal between the United States and Serbia. Published April 4, 2013
By ASSOCIATED PRESS - Associated Press
Two-time champion Victoria Azarenka has withdrawn from the Sony Open because of a right ankle injury. Published March 22, 2013
By ASSOCIATED PRESS - Associated Press
Former tennis star Jennifer Capriati has been charged after police said she punched her ex-boyfriend on Valentine's Day while he was working out at a gym. Published March 21, 2013
By HOWARD FENDRICH - Associated Press
The U.S. Open tennis tournament will increase its annual prize money to $50 million by 2017 _ nearly double what it was last year _ and switch back to a Sunday men's final in 2015, The Associated Press has learned. Published March 20, 2013
By HOWARD FENDRICH - Associated Press
After a year of closed-door meetings with tennis players seeking a greater say in the sport and a larger slice of Grand Slam revenues, the U.S. Open is making big changes. Published March 20, 2013
By HOWARD FENDRICH - Associated Press
The U.S. Open tennis tournament will increase its annual prize money to $50 million by 2017 _ nearly double what it was last year _ and switch back to a Sunday men's final in 2015, The Associated Press has learned. Published March 19, 2013
By BETH HARRIS - Associated Press
Rafael Nadal arrived at Indian Wells not believing he could win the tournament. A week later, the crystal trophy awarded to the champion was on the table next to him. Published March 18, 2013