I was very sure that the Mane - Sane issues then will not keep Mane in the club. I have known Mane as a gentle guy all while but till now I have never known the true reason Mane hit Sane. But I believe that Mane had endured it very much before he acted.
But according to the previous comments, I really thought that Mane has future in Europe for one or two seasons. There is no doubt that he is 31, but he looks energetic to be in competitive league for more 3 seasons.
The last news, that i have heard was that Mane has also agreed now to go to Al-Nassr. Until now he insisted to stay at Bayern Munich as far as i know and he did not want to go to the Saudi Arabia League. Now it seems like the officials of Bayern Munich and Al-Nassr were able to convince him that a transfer makes sense. I guess that Al-Nassr is offering him a huge salary. Now the only thing that needs to be done is that both clubs need to find a solution. I would guess that Bayern wants to have at least 30 Million € as transfer fee for him, given the fact that the Saudis are throwing around their oil money anyway so a few millions more won't hurt them obviously.
But if I don't have only old information here, it seems for now Al-Nassr will not be able to register new players with the FIFA.
This article says it.
If I understand this correctly, they can still buy new players, but they can't use them. Then a transfer could still make sense if they actually plan to pay off that debt. But I wonder why an SPL club would wait until they get a penalty and still not pay but lead negotiation with new players.