Serena Williams, aged 44, lost her Wimbledon first-round singles match to 20-year-old Maya Joint by a score of 6-3, 6-7(6), 6-3 on Tuesday. She received a wild card for both singles and doubles and will partner with Venus Williams in the latter event. Williams tweaked her right knee during the match but left the site unaided and was excused from media obligations by medical teams.