Serena Williams withdrew from the French Open with a pectoral muscle injury, minutes before she was expected to take the court to face Maria Sharapova in Monday’s fourth round.
Williams, a 23-time Grand Slam singles champion, won her first three singles matches (and played three doubles matches) at her first Grand Slam since capturing the 2017 Australian Open title while eight weeks pregnant.
Williams came into Roland Garros having played four WTA Tour matches, all in March, since giving birth to daughter Alexis Olympia Ohanian Jr. on Sept. 1.
She had not mentioned an injury in post-match interviews last week.