Bencic a no-go at Rio

Top-20 player Belinda Bencic said on Twitter that she is pulling out of the Rio de Janeiro Olympics, another blow to a Swiss tennis team that lost Roger Federer this week, too. Bencic, who is No. 16 in the WTA rankings, said Wednesday that she is “not completely ready” to compete at the Summer Games, although her injured left wrist has healed. The wrist problem forced Bencic, 19, to quit during her second-round match at Wimbledon on June 30. Federer announced Tuesday that he would sit out the rest of the season to protect his surgically repaired left knee. One person affected by both withdrawals is Martina Hingis, who was expected to play doubles with Bencic and mixed doubles with Federer at the Olympics.