Even if he plays his old football again after this stage, he will be able to play football for another 2-3 years at most. He was away from football because of the punishment he received in the ages when football should have been at its most productive. This was a situation that brought Pogban down, but of course he is the one at fault in this regard. He was banned from football because of the banned substance he used and he showed a great example of irresponsibility because he could not contribute to a team like Juventus. If Marseille transfers him now, they will be taking a great risk and making this transfer.
However, the reduction in his sentence from 4 years to only 18 months seems to be proof that Pogba did not actually use doping on purpose. Because we know Pogba is experiencing many problems related to his fitness due to the many injuries he received previously. So he took a lot of medicine to recover. And the result was that he was detected using doping. However, the doping case really made Pogba lose his glory days. Because at that time he was actually in a very good period. But the doping problem meant he had to fall back and start again after his sentence expired.
Marseille may be ready to accept risks that they also know about. And hopefully everything goes smoothly for everyone.