Schiavone rolls, American Stephens next

Italy's Francesca Schiavone returns a ball to Czech Republic's Petra Kvitova during their Fed Cup semi-final singles tennis match in Ostrava, Czech Republic, Sunday, April 22, 2012. (AP Photo/Petr David Josek)

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Schiavone rolls,... Italy's Francesca Schiavone returns a ball to Czech Republic's Petra Kvitova during their Fed Cup semi-final singles tennis match in Ostrava, Czech Republic, Sunday, April 22, 2012. (AP Photo/Petr David Josek)
Eyes on Nadal, D... Spain's Rafael Nadal, left, embraces Serbia's Novak Djokovic after defeating him in the final match at the Italian Open tennis tournament, in Rome, Monday, May 21, 2012. Nadal won 7-5, 6-3. (AP Photo/Riccardo De Luca)
Injured Nishikor... Kei Nishikori of Japan reacts after reacts after being injured during a match against Fernando Verdasco of Spain during the Barcelona open tennis in Barcelona, Spain, Friday, April 27, 2012. Kei Nishikori of Japan was forced to retire. (AP Photo/Manu Fernandez)
Clijsters to end... FILE - This Sept. 11, 2010, file photo shows Kim Clijsters, of Belgium, holding the championship trophy after winning the women's singles final at the U.S. Open tennis tournament in New York. Clijsters says this year's U.S. Open will be her last tournament before retiring. The former No. 1 had already announced that this would be her final season and said Tuesday, May 22, 2012, that she expects to quit after Flushing Meadows, where she is a three-time champion. (AP Photo/Mark Humphrey, File)
Fish, Petkovic p... German Andrea Petkovic reacts when losing 6-4, 6-1 against Australian Samantha Stosur during a Fed Cup World Group playoff match between Germany and Australia in Stuttgart, Sunday, April 22, 2012. Australia has now a 3-0 lead and stays n the World Group.(AP Photo/Michael Probst)
Nadal tops Djoko... Spain's Rafael Nadal bites the trophy after winning his final match against Serbia's Novak Djokovic at the Italian Open tennis tournament, in Rome, Monday, May 21, 2012. Rafael Nadal won his record sixth Italian Open title Monday by beating top-ranked Novak Djokovic 7-5, 6-3. Djokovic made 41 unforced errors in the match, including a double-fault on the last point to give Nadal his 49th career title and his 35th on clay. (AP Photo/Gregorio Borgia)
Althea Gibson no... Brooklyn Dodgers' second baseman gets tennis tips from tennis star Althea Gibson at the celebrity tennis tournament at the 7th Regiment Armory in New York, Feb. 16, 1951. The tournament was staged for the benefit of the American National Theater and Academy. (AP Photo/Marty Lederhandler)
Sharapova, Li Na... Russia's Maria Sharapova celebrates after winning her semifinal match against Germany's Angelique Kerber at the Italian Open tennis tournament, in Rome, Saturday, May 19, 2012. (AP Photo/Gregorio Borgia)
Serena withdraws... Serena Williams of the United States celebrates after winning a point during her match against Anabel Medina Garrigues of Spain at the Italian Open tennis tournament, in Rome, Thursday, May 17, 2012. Serena Williams beat Anabel Medina Garrigues 6-3, 6-1.(AP Photo/Alessandra Tarantino)
Federer rolls by... Switzerland's Roger Federer returns the ball to Argentina's Carlos Berlocq during their match at the Italian Open tennis tournament, in Rome, Wednesday, May 16, 2012. (AP Photo/Gregorio Borgia)
WTA Championship... Czech Republic's Petra Kvitova poses with the trophy after winning the final of the WTA Championships against Victoria Azarenka of Belarus in Istanbul, Turkey, Sunday, Oct. 30, 2011.(AP Photo/Vadim Ghirda)
Recharged Federe... Roger Federer, of Switzerland, returns to Andy Roddick during the Sony Ericsson Open tennis tournament in Key Biscayne, Fla., Monday, March 26, 2012. Roddick won 7-6, 1-6, 6-4. (AP Photo/Alan Diaz)
Errani wins thir... Italy's Sara Errani returns a ball to Czech Republic's Petra Kvitova during their Fed Cup semi-final singles tennis match in Ostrava, Czech Republic, Saturday, April 21, 2012. (AP Photo/Petr David Josek)
Fish to play Wim... Mardy Fish celebrates a point against Kevin Anderson, of South Africa, during the Sony Ericsson Open tennis tournament, Monday, March 26, 2012, in Key Biscayne, Fla. (AP Photo/Wilfredo Lee)
Djokovic to skip... Women pass by a billboard depicting Serbian tennis player Novak Djokovic in Belgrade, Serbia, Wednesday, April 25, 2012. Top-ranked Novak Djokovic says he will skip the hometown tennis tournament organized by his family because of the death of his grandfather. Djokovic said on Wednesday he felt emotionally drained and was unable to summon the mental strength since his grandfather died last Thursday. (AP Photo/Darko Vojinovic)
Fish not sure wh... FILE - In this March 29, 2012, file photo, Mardy Fish returns the ball to Juan Monaco, of Argentina, during the Sony Ericsson tennis tournament in Key Biscayne, Fla. In a telephone interview Tuesday, April 24, 2012, Fish said he's "not 100 percent sure" when he will return to the tour after a health scare that doctors are still doing tests to try to figure out exactly what forced him to pull out of the U.S. Davis Cup team's quarterfinal against France in early April. (AP Photo/Lynne Sladky, File)
36th-ranked Ande... Kevin Anderson, of South Africa, serves to Marinko Matosevic, of Australia, during the singles final of the Delray Beach International Tennis Championships, Sunday, March 4, 2012, in Delray Beach, Fla. (AP Photo/Wilfredo Lee)
Hsieh first Asia... Hsieh Su-wei of Taiwan returns a shot against Petra Martic of Croatia during their final match at the WTA Malaysian Open tennis tournament in Kuala Lumpur, Malaysia, Sunday, March 4, 2012. (AP Photo/Lai Seng Sin)