Tomas Berdych, of Czech Republic, returns a shot during his semifinal match against Sam Querrey in the Winston-Salem Open tennis tournament in Winston-Salem, N.C., Friday, Aug. 24, 2012. (AP ... more 

Tomas Berdych, of Czech Republic, returns a shot during his semifinal match against Sam Querrey in the Winston-Salem Open tennis tournament in Winston-Salem, N.C., Friday, Aug. 24, 2012. (AP Photo/Chuck Burton) less