Berdych to face Wawrinka
Fifth seed Tomas Berdych dropped just five games in beating Frenchman Julien Benneteau to reach the fourth round of the US Open.
Berdych needed six minutes shy of two hours to complete a 6-0 6-3 6-2 win against 31st seed Benneteau in energy-sapping conditions at Flushing Meadows.
"It was a bit hot, a bit humid, but otherwise the tennis was good," said Berdych, who was beaten by eventual champion Andy Murray in the semi-finals last year.
"I managed to stay focused from the first point until the last. There were no ups and downs, just took all my chances that I had, and won in straight sets."
The Czech's reward is a last-16 meeting with ninth-seeded Swiss Stanislas Wawrinka, who battled past unseeded Cypriot Marcos Baghdatis 6-3 6-2 6-7 (1/7) 7-6 (9/7).
Wawrinka leads the career head-to-head with Berdych 6-5 and won the pair's last meeting, on clay, in the semi-finals of the Madrid Masters earlier this year.
"It's always tough to play against him," said Wawrinka said. "Usually we have some great battles together. I need to adapt a little bit my game because he's so powerful. He's not really happy to play against me. He doesn't like my game.
"We practice a few times together. I know if I'm if fit and if I play well, I have some chance."