UPDATE 11-Tennis-Winston-Salem Open men's singles round 2 results

Aug 21 (Infostrada Sports) - Results from the Winston-Salem Open Men's Singles Round 2 matches on Tuesday
Ernests Gulbis(Latvia) beat 12-Kevin Anderson(South Africa)6-4 7-6(2)
3-John Isner(U.S.) beat Martin Klizan(Slovakia)4-6 6-3 7-5
Sergiy Stakhovsky(Ukraine) beat 15-Pablo Andujar(Spain)6-2 6-3
14-David Nalbandian(Argentina) beat Robin Haase(Netherlands)6-2 6-4
16-Jarkko Nieminen(Finland) beat Benjamin Becker(Germany)6-3 6-3
2-Tomas Berdych(Czech Republic) beat Alex Bogomolov Jr(Russia)6-3 7-5
13-Jurgen Melzer(Austria) beat Michael McClune(U.S.)6-2 2-6 7-6(10)
Steve Darcis(Belgium) beat 11-Denis Istomin(Uzbekistan)6-2 6-2
Lukasz Kubot(Poland) beat 8-Julien Benneteau(France)2-6 7-5 6-3
7-Sam Querrey(U.S.) beat Santiago Giraldo(Colombia)6-3 6-2
9-Feliciano Lopez(Spain) beat Donald Young(U.S.)6-2 6-3
4-Alexandr Dolgopolov(Ukraine) beat Lu Yen-Hsun(Taiwan)6-1 6-3