Serena Williams has pulled out of the French Open before her fourth-round match with Maria Sharapova because of an injury that affected her serve.
The 23-time Grand Slam winner recently returned to tennis after giving birth to her first child, but looked in good form in her opening matches.
“I’ve had issues with the right pectoral muscle to the point where I can’t serve,” said the 36-year-old.
“I’ll have a scan. I won’t know about Wimbledon until I get the results.”