Cape Town - Juan Martin del Potro's doctor saying he is undergoing a "new regenerative treatment" that will help him to return to action "in the near future".
Del Potro first injured his knee during the Shanghai Masters in October during an innocuous fall, but scans revealed that he fractured his right knee cap.
He only made his comeback in February as he competed at the Delray Beach Open, but he has been sidelined since losing in the quarter-final.
There were fears that the Argentine might have to undergo knee surgery, but he revealed over the weekend that he has been advised to continue with his current treatment.
And now Dr Angel Cotorro has released a statement confirming "a specific rehabilitation program".
"Juan Martin del Potro visited the Mapfre Clinic last week because of the fracture in his right knee cap he suffered almost six months ago. Since the beginning he was advised to take a conservative approach with his treatment," the statement said.
"After participating in Delray Beach he began a regenerative treatment with Dr. Alejandro Rolón in Buenos Aires. He later had multiple medical tests done in Barcelona and considering his progress in the past few weeks, it's been decided to implement a new regenerative treatment.
"Also, he will follow a specific rehabilitation program led by his physiotherapist, Diego Rodriguez, which will progressively allow the player to incorporate further training and compete on tour again in the near future."