MONACO (AP) -- Tenth-ranked Richard Gasquet has pulled out of the Monte Carlo Masters after failing to shake off a back injury.
Wheelchair tennis' U.S. Open champion Lucas Sithole and his brother were dragged out of their car by four armed men in a late-night carjacking attempt in their native South Africa, the sport's national federation said Saturday. Both were unhurt, Wheelchair Tennis South Africa said, but had their cellphones stolen in the incident near a highway in Johannesburg at around 11.15 Friday night. Sithole's car was also damaged after the armed men emerged from a vehicle in front of the brothers on a highway onramp and forced them out of their car, WTSA said. He took up tennis and won the 2013 U.S. Open title, becoming the first African player to win a wheelchair tennis Grand Slam event.

Colombia's Santiago Giraldo returns a shot to fellow countryman Alejandro Gonzalez in the quarterfinals of the U.S. Men's Clay Court Championship, Friday, April 11, 2014, in Houston. Giraldo won 6-3, 6-4 to advance to the semifinals. (AP Photo/Pat Sullivan)

HOUSTON (AP) -- Fourth-seeded Fernando Verdasco beat Donald Young Jr. 7-6 (1), 6-1 on Friday in the quarterfinals of the U.S. Men's Clay Court Championships.

Fred Couples waits to his on the driving range during a practice round for the Masters golf tournament Tuesday, April 8, 2014, in Augusta, Ga. (AP Photo/Matt Slocum)

Ian Poulter and Rickie Fowler are paired together for the third round of the Masters, coupling two of the most colorful and best-dressed guys on the PGA Tour. Fowler wore a bright pink ensemble that was unmistakable at Augusta National. - Mark Long, --- U.S. skier Bode Miller and wife Morgan Beck have a story to tell about the Masters. According to the Augusta Chronicle, Miller and Beck were stopped on their way to the course Thursday and told to get rid of a quesadilla they had hoped to snack on during the first round.

CASABLANCA, Morocco (AP) -- Eighth-seeded Guillermo Garcia-Lopez of Spain beat third-seeded Benoit Paire of France 7-5, 7-6 (4) on Friday to reach the semifinals of the Grand Prix Hassan II.

Santiago Giraldo, of Colombia, returns the ball to Marcos Baghdatis, of Cyprus, during the Sony Open tennis tournament, Wednesday, March 19, 2014, in Key Biscayne, Fla. (AP Photo/Luis M. Alvarez)

HOUSTON (AP) -- Santiago Giraldo upset second-seeded Tommy Robredo 6-3, 6-4 on Thursday to advance to the quarterfinals of the U.S. Men's Clay Court Championship.

CASABLANCA, Morocco (AP) -- - Third-seeded Benoit Paire of France made a winning return from injury as he beat Albert Montanes to reach the quarterfinals of the Grand Prix Hassan II.

Dustin Brown hits a return against John Isner at the U.S. Men's Clay Court Championship tennis tournament on Wednesday, April 9, 2014, in Houston. (AP Photo/Houston Chronicle, Bob Levey)

John Isner apologized for his performance. Dustin Brown said it felt unbelievable. The top-seeded Isner lost to the dreadlocked Brown in the second round of the U.S. Men's Clay Court Championship on Wednesday night. It was Brown's first career victory against a top-10 player.

Brandt Snedeker carries his daughter Lily during the par three competition at the Masters golf tournament Wednesday, April 9, 2014, in Augusta, Ga. (AP Photo/David J. Phillip)

Tennis star Caroline Wozniacki stood out at the Masters on Wednesday - and not because of her erratic golf game this time. Wozniacki showed up at Augusta National with her blonde hair dyed bright pink. And she wore matching shoes! A former top-ranked player on the WTA Tour, Wozniacki caddied for fiance Rory McIlroy in the Par 3 contest. - Mark Long, --- TODDLERS RULE: The Par 3 contest might as well have been a cutest kid competition.

This photo made Tuesday, April 1, 2014 shows Serena Williams gesturing during a loss to Jana Cepelova at the Family Circle cup tennis tournament in Charleston, S.C. Cepelova defeated Williams, 6-4, 6-4. (AP Photo/The Post And Courier, Grace Beahm )

Top-ranked Serena Williams is too wiped out to play in the Fed Cup against France on April 19-20, U.S. captain Mary Joe Fernandez said Wednesday. ''She is mentally and physically exhausted and needs a break, so bad timing for us, unfortunately,'' Fernandez said in a telephone interview. She's been going hard the past couple of years and needs to get refreshed.'' Neither of the Williams sisters was on the roster submitted Wednesday by Fernandez for the upcoming World Group playoff, to be played on an indoor hard court at Saint Louis University. ''Serena and Venus both wanted to play,'' Fernandez said, ''and I was looking forward to having them.'' She called the 32nd-ranked Venus' absence the result of ''an innocent mistake'': According to Fernandez, Venus signed up for the hard-court tournament being played April 14-20 at Kuala Lumpur, Malaysia, not realizing that was the same week as the Fed Cup matches.

France's Gael Monfils returns the ball to German player Peter Gojowczyk, during their single match in the quarterfinals of the Davis Cup in Nancy, eastern France, Sunday April 6, 2014.(AP Photo/Remy de la Mauviniere)

CASABLANCA, Morocco (AP) -- Top-seeded Kevin Anderson of South Africa lost to Victor Hanescu of Romania 6-4, 6-4 Wednesday in the second round of the Grand Prix Hassan II.

Lleyton Hewitt, of Australia, returns a shot to Peter Polansky, of Canada, at the U.S. Men's Clay Court Championship tennis tournament, Tuesday, April 8, 2014, in Houston. Hewitt won 6-4, 3-6, 6-4. (AP Photo/Houston Chronicle, Thomas B. Shea)

HOUSTON (AP) -- Former world No. 1 Lleyton Hewitt beat Canada's Peter Polansky 6-4, 3-6, 6-4 in gusty conditions Tuesday to advance to the second round of the U.S. Men's Clay Court Championship.

LONDON (AP) -- The United States will host Slovakia in the Davis Cup World Group playoffs on Sept. 12-14.