A famous doctor named Ripoll shared his opinion on Messi's injury in a podcast recently.
He said, "This injury is caused by incoordination between the order that commands the brain and muscle contraction."
Then he added, "Messi can not get carried away by his competitive gene and want to shorten the deadlines."
However, Barcelona does not allow Messi to train to keep his health at risk.
In fact, the last time he played a football match was for Argentina at the Copa America on July 6.