Switzerland announced their athletes   Men's singles Roger Federer Stan Wawrinka   Women's singles Timea Bacsinszky Belinda Bencic   Men's doubles Roger Federer/Stan Wawrinka   Women's doubles Martina Hingis/Belinda Bencic Timea Bacsinszky/Xenia Knoll (waiting for confirmation)   Mixed doubles Martina HIngis/Roger Federer