Newcastle's owners have taken a majority stake in four Saudi clubs - including Cristiano Ronaldo's team Al Nassr.
The Public Investment Fund (PIF) is taking 75 per cent stakes in Al Nassr, Asian Champions League finalists Al Hilal, Al Ahli and Al Ittihad who are trying to sign Karim Benzema.
Benzema is leaving Real Madrid and is set to sign a deal worth in excess of £1m-a-week while Lionel Messi is the next target for the Saudis who are trying to set up the richest league in the world.
