Marin Cilic won his first match since returning from a doping ban with a 5-7 6-1 6-4 success against Igor Sijsling in Paris.
Top seed David Ferrer cruised past Julien Benneteau in straight sets to reach the quarter-finals of the Valencia Open.
Sixth seed Gilles Simon was shocked by Alejandro Falla 6-1 6-0 in the opening round of the ATP tournament in Valencia.
Unheralded Joao Sousa beat France's Julien Benneteau 2-6 7-5 6-4 in the Malaysian Open final.
Unseeded Portuguese Joao Sousa reached his first ATP Tour final with victory over fourth seed Juergen Melzer on Saturday.
Serena Williams, Andy Murray and Novak Djokovic ensured normal service resumed at the last Grand Slam of year.
Tomas Berdych cruised into the fourth round with a 6-0 6-3 6-2 win over Julien Benneteau at the US Open.
Order of play for day seven of the US Open, with Andy Murray, Serena Williams, Novak Djokovic and Agnieszka Radwanska on court.
Order of play for day five of the US Open, with Andy Murray, Novak Djokovic, Serena Williams and Laura Robson all expected on court.
Organisers have announced the seedings for the US Open and Roger Federer is seeded only seventh.
Novak Djokovic and Andy Murray cruised into the Cincinnati Masters quarters while Roger Federer and Rafael Nadal were tested.
ATP World Tour Finals
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