Top-ranked Serena Williams will defend her title at next month's Brisbane International among a powerful women's field in preparation for the Australian Open.
Kei Nishikori of Japan beat Jo-Wilfried Tsonga 1-6, 7-6 (4), 7-6 (7) in the second round of the Paris Masters on Tuesday, ending the Frenchman's bid for a spot in the World Tour Finals.
Roger Federer rallied past Denis Istomin 4-6, 6-3, 6-2 in the second round of the Swiss Indoors on Wednesday.
Stanislas Wawrinka lost in the first round of the Swiss Indoors on Tuesday, damaging his chances of playing in his first ATP World Tour Finals.
Roger Federer slumped to another early loss, with Gael Monfils beating him 6-4, 6-7 (5), 6-3 on Thursday in the third round of the Shanghai Masters.
Top-seeded Juan Martin del Potro overcame Alexandr Dolgopolov of Ukraine 4-6, 6-4, 6-2 to reach the Japan Open semifinals on Friday.
Third-seeded Milos Raonic of Canada overpowered Jeremy Chardy of France 6-4, 6-3 on Thursday to advance to the quarterfinals of the Japan Open.
Top-seeded Juan Martin del Potro advanced to the Japan Open quarterfinals with a comfortable 6-2, 6-2 win over fellow Argentine Carlos Berlocq on Wednesday.
Top-seeded Juan Martin del Potro moved into the second round of the Japan Open with a 4-6, 6-4, 6-3 victory over Marcos Baghdatis of Cyprus on Tuesday.
Second-seeded Jo-Wilfried Tsonga needed four match points to beat Gael Monfils 6-3, 7-6 (8) on Monday to advance to the second round of the Japan Open.
It's good to be a big man in tennis these days -- well most of the time.
It hasn't been a summer of cartwheels for Roger Federer, but after one match at the US Open, life isn't too shabby.
Raise your hand if you thought Rafael Nadal could make this kind of comeback? If you did, we don't believe you.
Rafael Nadal looked quite comfortable in his return to the U.S. Open, beating American Ryan Harrison in straight sets.
Wimbledon champion Andy Murray tumbled out of the Rogers Cup on Thursday, falling 6-4, 6-3 to Lavia's Ernests Gulbis in the third round.
Next week, for the first time in 40 years of ATP rankings, there will be no American men in the top 20.