Top seed Berdych through to quarters of Open 13
Berdych withstood 19 aces from Gulbis in his second-round opener.
He was joined by third-seeded Jo-Wilfried Tsonga, the 2009 champion who eased past Nikolay Davydenko 7-6 (1), 6-3. Tsonga will meet Bernard Tomic of Australia, who also won in straight sets, 6-3, 7-5, against Somdev Devvarman of India.
Copyright 2013 by The Associated Press
This story is from ESPN.com's automated news wire. Wire index