The USTA has announced that two-time U.S. Open quarterfinalist James Blake (Tampa, Fla.) and a talented group of Americans, consisting of Bradley Klahn (Poway, Calif.), Jack Sock (Lincoln, Neb.), Ryan Sweeting (Ft. Lauderdale, Fla.)and Donald Young (Atlanta), along with two international players—Australian Carsten Ball and Guillaume Rufin of France ...