Querrey wins in quarters
Sam Querrey reached his third semi-final of the season as he saw off Richard Berankis to advance at the Winston-Salem Open.
Querrey, the sixth seed, beat the Lithuanian 6-3 6-4 to set up a semi-final meeting with Austrian Jurgen Melzer.
Melzer, seeded ninth, beat Dmitry Tursunov of Russia 6-4 6-3 after a lengthy rain delay.
Number 10 Alexandr Dolgopolov of Ukraine beat Lu Yen-Hsun of Taiwan 7-6 (9-7) 6-3 and will face France's Gael Monfils, the 15th seed who beat Fernando Verdasco 6-7 (10-12) 6-4 6-4.