The so-called King of Clay continues to battle the injury he suffered in January at the Australian Open, the latest in a string of ailments to have plagued the twilight of his career.
Hopes for Rafael Nadal to compete for a 15th French Open singles title this spring took a major hit on Thursday.
Nadal, 36, of Spain, announced that the injury to the psoas muscle in his lower abdomen and upper right leg that he sustained at the Australian Open in January had not healed as he and his doctors and trainers had expected.