Serena Williams criticises tennis anti-doping protocol ahead of Wimbledon return
Tennis legend Serena Williams took aim at the game’s anti-doping protocol ahead of her Wimbledon return, claiming the system is “unprofessional” and “unreasonable”. The 44-year-old, who is a seven-time Wimbledon singles champion, returned to the testing pool before she could announce her comeback to professional tennis. “It’s gruelling. They changed the rules now,” Williams told…