Mourinho would be a different story but it would be sad if he does it. I would prefer to see him coaching some interesting European clubs.
Actually, Mounrinho at this time is not like when he was at Chelsea, Real Madrid or even at Inter, which gave the club a title, because in several years at AS Roma, they have not achieved anything extraordinary, but I am sure that as long as there are European clubs who want him, then going to the Saudi Pro League was not his priority.
The big match Al Hilal vs Al Nassr will be a pretty important match for Al Nassr because they need a win so that the point difference doesn't get further away from Ittihad FC, but it's not easy for them to get 3 points because they have to go to their opponent's house, and Al Hilal in 3 meetings with Al Nassr dominated more with 2 wins and 1 draw.
Bookmakers favor Al Nassr, who is as away team to win this match, maybe because Al Hilal is not in very good condition because of the last 3 matches they have played they can only get 1 point, thus closing the opportunity to continue to compete for the championship, and the last defeat to Al Baten team in the relegation zone was really shocking.