Juan Martin del Porto has suffered a groin strain and is a doubt for the French Open, the Argentine world number six said on Friday.
Del Porto was forced to pull out of the Italian Open in Rome on Thursday after feeling a pain in his left groin in a match against Belgian David Goffin.
“After the medical examinations today, it has been determined that I have suffered a groin strain (grade 1) in Rome,” 29-year-old Del Potro said on Twitter.
“I have started to do rehab and will evaluate the situation in the upcoming days to decide whether I can play the French Open.”
The injury comes at a bad time for Del Potro, who has started the season well with tournament wins in Acapulco and Indian Wells.
The French Open starts on May 27 in Paris.