The 44-year-old has pulled out of her doubles match with sister Venus Williams due to a knee injury suffered in her first-round defeat to Maya Joint in the singles

Serena received wild card invitations from Wimbledon organizers to play both singles and doubles with Venus.

Serena Williams, 44, did not ask for medical treatment during a 6-3 6-7 (6) 6-3 loss to 20-year-old Maya Joint of Australia in the first round on Tuesday. | Tennis News