Maradona's doctor: He has no cartilage left in his knees and will need prostheses International Football - Mexico Video shown of Argentine struggling to walk

Diego Maradona's surgeon German Ochoa revealed that the Argentine legend has no cartilage left in either knee following a video of him struggling to walk during a training session.

The coach of Mexican side Dorados de Sinaloa will need two prostheses.

"I know Diego going back to 2004 when I operated on his right knee, 27 days after he said goodbye to football at the Bombonera," said Ochoa.

"Then in June before the World Cup we did a basic treatment so that he could carry out his activities in Russia in the best way possible.

"Maradona has severe osteoarthritis in his two knees and has no cartilage left, the bones rub together and it is a serious problem as it cause a lot of pain, inflammation and difficulty to move.

"The solution is to operate and put prostheses.

"It would not get to the point that Diego could not walk, it would not get that bad. Advances in technology offer a solution and the most prudent and intelligent option is to operate."