PARIS -- Serena Williams could not put together a comeback against a much younger and less-experienced opponent in the fourth round of the French Open, losing 6-3, 7-5 to Elena Rybakina on Sunday.
Williams' defeat came hours after Roger Federer withdrew from the tournament, saying he needed to let his body recover after a long third-round victory.
Williams has won 23 Grand Slam titles and Federer has won 20. Both turn 40 this year.
Williams has won the French Open three times.