American qualifier Sam Querrey reached the second round of the Paris Masters by beating 2012 runner-up Jerzy Janowicz 6-7 (5), 6-2, 6-4 Monday.
Top-seeded David Ferrer powered his way past Andreas Seppi 6-3, 7-5 to reach the second round of the Valencia Open on Wednesday.
Fifth-seeded Anastasia Pavlyuchenkova started her Kremlin Cup campaign with a win on Tuesday, beating 16-year-old Croatian Ana Konjuh 6-3, 6-4.
Novak Djokovic and Roger Federer set up a rematch of their Wimbledon final with convincing straight-set wins to reach the semifinals of the Shanghai Masters on Friday.
Andy Murray moved into the third round of the Shanghai Masters with a 7-5, 6-2 win over Jerzy Janowicz on Wednesday.
Fabio Fognini of Italy bumped into the Chinese wild card who beat him and gave an obscene gesture to the crowd at the Shanghai Masters on Tuesday.
Bob and Mike Bryan opened their quest for a fifth US Open crown and their 100th overall title together with a 6-2, 6-3 first-round victory Wednesday over Max Mirnyi and Mikhail Youzhny.
Novak Djokovic had a ragged start in the one tournament that has always eluded him.
Roger Federer rolled to a 6-2, 6-0 victory over wild card Peter Polansky in the second round of the Rogers Cup, and Stan Wawrinka, Ernests Gulbis and Richard Gasquet also advanced in the U.S. Open tuneup on Tuesday.
Robin Haase advanced to the semifinals of the Swiss Open by beating defending champion Mikhail Youzhny 3-6, 6-1, 6-4 Friday in a rematch of last year's final.
Top-seeded Mikhail Youzhny began his Swiss Open title defense by beating Kenny De Schepper of France 6-3, 6-4 in a second-round match on Thursday.
Two-time champion Thomaz Bellucci won his first-round match at the Swiss Open on Tuesday, beating Gerald Melzer of Austria 6-3, 6-4.
The 17-year-old Alexander Zverev reached the semifinals of his hometown tournament by defeating Tobias Kamke 0-6, 7-5, 6-3 in the Hamburg Open on Friday.
Serbian qualifier Filip Krajinovic defeated defending champion Fabio Fognini 6-4, 6-0 Wednesday as a host of seeded players crashed out in the second round of the Hamburg Open.
Dominic Thiem fought from 5-2 down in the final set and held off a match point before upsetting the eighth-seeded Marcel Granollers 2-6, 6-3, 7-5 in the second round of the Hamburg Open on Tuesday.
Roberto Bautista Agut defeated Lukas Rosol 6-3, 4-6, 6-2 in the Mercedes Cup final on Sunday for his second career title.