Serena Williams, the 23-time Grand Slam singles champion, has withdrawn from the doubles competition at Wimbledon. She was scheduled to play her opening-round match alongside her older sister, Venus.
The decision follows a right knee injury Williams sustained during her opening-round singles defeat earlier this week. Organizers had previously pushed the match back to Saturday's order of play to provide her time to deal with the knee problem.
Williams announced her withdrawal on Saturday, citing the injury as the reason for pulling out of the doubles campaign.