Tomas Berdych of the Czech Republic, returns to Ivo Karlovic of Croatia, at the Rogers Cup men's tennis tournament Thursday, Aug. 11, 2011 in Montreal. (AP Photo/The Canadian Press, Paul Chiasson)

Associated Press
Tomas Berdych of the Czech Republic, returns to Ivo Karlovic of Croatia, at the Rogers Cup men's tennis tournament Thursday, Aug. 11, 2011 in Montreal. (AP Photo/The Canadian Press, Paul Chiasson)
Tomas Berdych of the Czech Republic, returns to Ivo Karlovic of Croatia, at the Rogers Cup men's tennis tournament Thursday, Aug. 11, 2011 in Montreal. (AP Photo/The Canadian Press, Paul Chiasson)