If you know about Public Investment Fund (PIF) who manages 5 clubs in the Saudi League and Newcastle United then you will not be surprised they can do something you never thought of before including when they made an offer to PSG to bring in Mbappe worth 300 million you know that's as much as they spent when they bought Newcastle (350 million) and reportedly this company has total assets worth 700 billion
so we can no longer compare the Saudi League to the Chinese League or MLS now this league is one level under European Leagues IMO.
I don't exclude that possibility because Newcastle United don't lack of money but Mbappe, let's talk about him first because what he wants for his career is most important. Money, he already has it in PSG and can get more if he accepts to stay with them. Titles, Champions League, Ballon d'Or, he will not get it with PSG if they won't improve a lot in future.
So let's think of possibility to win big titles, will Mbappe get them in Newcastle United, probably he will not get such. I believe Mbappe will choose Real Madrid and rumor says that he already got agreement with Real Madrid for a next summer contract.
Recently added Sadio Mané to the attacking force, they're relentless and they keep their haunt active for more potential signings. Al Nassr strengthened their force this summer, always ready to take on new challenges without hesitation; the club remained the leading club in capturing European players; the club has beneficial approximate budgets for players who express interest in playing for them, and they're always willing to spend a lot of money on them.
I am surprised to see Mane transfer to Al Nassr because he will have to stay under Cristiano Ronaldo and support the striker. He did not feel happy in Liverpool because he was a second brightest star under Mohamed Salah. It seems money is convincing enough to attract him to Al Nassr and he has to accept the supportive role in the new club.
With Mane, Cristiano Ronaldo and Talisca, Al Nassr will have very powerful attacking in a new season. They will be ready to win the Saudi Professional League if they continue to strengthen their squad, in midfield and the transfer season is still opening.