No problems for Berdych
Second seeded Czech breezes through in North Carolina
Last Updated: 22/08/12 5:56am
Tomas Berdych: Opened his campaign in North Carolina with a straight sets victory
Second seed Tomas Berdych booked his place in the third round of the Winston-Salem Open with a solid straight sets victory over Alex Bogomolov Jr.
The Czech, who enjoyed a bye in the first round, opened his campaign with a routine success as he saw off his Russian opponent 6-3 7-5.
Top seed Jo-Wilfried Tsonga fended off the substantial threat posed by Thomaz Bellucci to win 6-3 7-6 (7/3).
The Frenchman was made to work hard in the second set by Bellucci, when he saved five break points before clinching the match on the tie-break.
Tsonga plays Sergiy Stakhovsky next, the Ukrainian having knocked out 15th-seeded Spaniard Pablo Andujar 6-2 6-3.
There was a tougher ride for American third seed John Isner, who dropped a set to Martin Klizan but recovered to advance 4-6 6-3 7-5.
Seventh seed Sam Querrey also gave the home fans something to cheer as the big-serving American eased through with a one-sided 6-3 6-2 triumph over Santiago Giraldo.
However, three other Americans, Donald Young, Michael McClune and Ryan Harrison, did not fare so well.
Young was easily beaten 6-2 6-3 by Feliciano Lopez, but McClune pushed 13th seed Jurgen Melzer all the way before eventually bowing out 2-6 6-2 6-7 (8/10).
Harrison, 20, slipped to a 6-4 6-2 defeat against sixth seed Marcel Granollers.
There were victories for fourth seed Alexandr Dolgopolov, 14th seed David Nalbandian and 16th seed Jarkko Nieminen against Lu Yen-Hsun, Robin Haase and Benjamin Becker respectively.
However, eighth seed Julien Benneteau and 11th seed Denis Istomin both departed the tournament.
Frenchman Benneteau lost a tight three-set battle against Poland's Lukas Kubot as he was beaten 2-6 7-5 6-3, but Istomin was blown away by Steve Darcis as the Belgian triumphed 6-2 6-2.