Serena Williams withdraws from doubles match with sister Venus at Wimbledon due to injury

Serena Williams withdrew from her doubles match with sister Venus at Wimbledon on Saturday due to a right knee injury. The 44-year-old Serena was injured during her singles return earlier in the week — in a three-set loss. “I’m heartbroken to have to withdraw from doubles. Coming back to compete again has been a gift, [...]