Serena Williams has pulled out of the Wimbledon doubles with her sister Venus Williams. The 23-time Grand Slam champion was forced to miss the event due to a knee injury. Williams recently made a comeback to professional tennis and was given a wild card for the Wimbledon singles, where she suffered a first-round exit after defeat to Australia’s Maya Joint. During the match, she also suffered a knee injury that cut short her Wimbledon campaign.
