American Varvara Lepchenko won in her Fed Cup singles debut to lift the United States to a 1-1 tie against Italy on Saturday.
Serena Williams joked that since the calendar still read 2012, she needed to maintain this year's dominant form.
Maria Sharapova is back in the U.S. Open quarterfinals for the first time since winning the title in 2006.
Serena Williams lost her cool and her 19-match winning streak at the Western & Southern Open. Sister Venus did much better, reaching the semifinals for the first time this season.
Serena Williams dominated with her groundstrokes and even hit a left-handed forehand Thursday to beat former No. 1 Caroline Wozniacki of Denmark 6-0, 6-3 in the quarterfinals at the Olympics.
Maria Sharapova struggled with her serve, but rallied Friday to beat Hsieh Su-wei at Wimbledon
Five-time champion Venus Williams lost in the opening round of Wimbledon for the first time since 1997, falling 6-1, 6-3 to Elena Vesnina of Russia.
Welcome to Miami. The power trio is back in business, but how they fare is anyone's guess.
Wimbledon champion Petra Kvitova will team with countryman Radek Stepanek to play mixed doubles at the London Olympics.
Wimbledon champion Petra Kvitova won her first WTA Championships title on Sunday, beating Victoria Azarenka 7-5, 4-6, 6-3 for a victory that will also put her at No. 2 in the world rankings.
Kim Clijsters' ascent to the top ranking might be short-lived, but nonetheless, who's equipped to prevent her from Slam supremacy?
There are good reasons Rafael Nadal hasn't won a U.S. Open title in the past. This year, we see only reasons that Rafa will walk away from New York a winner.