Petra Kvitova celebrates at Wimbledon.
Czech Petra Kvitova celebrates in her match with Bulgaria's Tsvetana Pironkova on the eigth day of the 125th Wimbledon Championships in Wimbledon,England on Tuesday, June 28, 2011. UPI/Hugo Philpott
World No. 1 Serena Williams increases her lead this week in the women's world tennis rankings and Sara Errani sets a personal best by moving to fifth.
Top seeds Serena Williams and Maria Sharapova lost just four games between them Thursday in gaining spots in the quarterfinals of the Italian Open in Rome.
World No. 1 Serena Williams swept to a second-round win Tuesday at the Italian Open tennis tournament in Rome.
Sara Errani matches her career-high ranking with a move to sixth and Caroline Wozniacki also is up a spot in Monday's update of the women's tennis rankings.
Ekaterina Makarova stunned world No. 3 Victoria Azarenka in three sets Wednesday in a second-round match at the Mutua Madrid Open.
Serena Williams puts her No. 1 ranking and Mutua Madrid Open title on the line this week.
Defending champ Serena Williams and Agnieszka Radwanska each advanced but Li Na fell Sunday in first-round action at the Madrid Open.
Maria Sharapova collected her 29th WTA title with a win in Germany that allowed her to keep close to No. 1 Serena Williams in the women's tennis rankings.
No. 1-seed Maria Sharapova was again pushed to a third set Friday before winning a berth in the semifinals at the Porsche Tennis Grand Prix in Germany.
Maria Sharapova and Li Na, the event's top two seeds, reached the quarterfinals Thursday at the Porsche Tennis Grand Prix.