American Sam Querrey reached the quarterfinals of the Nice Open, beating Sergiy Stakhovsky of Ukraine 7-5, 6-3 on Wednesday.
Seventh-ranked Juan Martin del Potro of Argentina has pulled out of the upcoming French Open because of a respiratory virus.
Seeded players Hsieh Su-wei of Taiwan and Monica Niculescu of Romania were beaten Wednesday in the second round of the Strasbourg International.
Americans Mardy Fish and Brian Baker have pulled out of the 2013 French Open, which will start Sunday in Paris.
Top seed and former world No. 1 Caroline Wozniacki was a second-round upset victim, while fourth-seeded American Sloane Stephens notched a pair of victories Wednesday at the $690,000 Brussels Open, a final clay-court French Open tune-up.
Former U.S. Open champion Juan Martin del Potro has pulled out of the 2013 French Open after failing to recover from a virus.
Second-seeded Frenchman Gilles Simon and third-seeded American Sam Querrey posted second-round wins, while towering American John Isner went by way of the upset Wednesday at the $530,000 Nice Open, a final clay-court French Open tune-up.
Fabio Fognini overcame a sloppy first set to beat Italian countryman Marco Cecchinato 1-6, 6-1, 6-2 Tuesday in the first round of the Nice Open.
Top-seeded Janko Tipsarevic lost in the second round of the Power Horse Cup on Wednesday, falling 7-6 (1), 6-1 to Argentine qualifier Guido Pella.
Virginia finally took that last step and won an NCAA men's tennis championship.
Sixth seed Fabio Fognini and French crowd favorite Gael Monfils were among Tuesday's first-round winners at the $530,000 Nice Open, a final clay-court French Open tune-up.
World No. 2 Andy Murray will not participate in the upcoming French Open due to a back injury.
Seventh seed Viktor Troicki pressed on, while former world No. 3 Nikolay Davydenko suffered an opening-round upset at the inaugural $530,000 Power Horse Cup, a final French Open tune-up.
Andy Murray withdrew from the French Open on Tuesday because of a chronic back injury and will now focus on preparing for the start of the grass-court season next month.
With Kristie Ahn back in the lineup after missing parts of the last two seasons, 12th-seeded Stanford was a different team.
Top seed and former runner-up Marion Bartoli of France was one of four upset victims Tuesday at the $235,000 Strasbourg International tennis event, a final clay-court French Open tune-up.
Sixth-seeded Jarkko Nieminen of Finland beat Lukas Lacko of Slovakia 6-3, 6-1 Monday to reach the second round of the Power Horse Cup, a clay-court tuneup for the French Open.
Fifth seed Andreas Seppi and former world No. 1 Lleyton Hewitt came up a first-round losers Monday at the $530,000 Nice Open, a final clay-court French Open tune-up.
All of Monday's scheduled opening-round action was postponed because of rain at the $235,000 Strasbourg International tennis event, a final clay-court French Open tune-up.
Top-seeded Marion Bartoli and No. 2 Tamira Paszek were bounced from the first round of the Strasbourg International on Tuesday.