I am aware of that but both countries have very close links and I'm sure do plenty of business together so a lot of underhand things could potentially happen.
The City owners are in trouble for putting money into City through their shell companies in UAE. I'm sure this could be done via Saudi instead, the club get a good player thus increasing the profile of the league, the player gets paid a shit tonne of money and City get to show this for their accounting purposes.
I'm not saying this is what is happening but this is what is being hinted at.