Morata is a player to go into Arabia Saudi League he is gonna score a lot of goals surely, he tends to play in a way where this league can suit him in the perfect way, plus for sure Atletico Madrid is gonna be interested in sell him for a good ammount of money.
Yes, Morata is a good player as a striker and there is no doubt that he will definitely be successful in the Saudi Pro, especially considering the advantages he can get in Saudi, of course he will be interested in moving there and of course ATL. Madrid will sell him for a high price, but if it all works out then there is no doubt this player of Spanish descent will make himself a goalscorer in the Saudi Pro, because his skill in finding the back of the opponent's goal is second to none I'm in doubt, so I think he'll be comfortable scoring at the Saudi Pro.
The Saudi league has no strong competition while Morata already has a lot of experience competing with the strongest clubs in Europe and if he joins the Saudi Arab club, I believe he will be the most scoring player and compete with Ronaldo and also Mitrović.
His talent has never been doubted in history he has always been able to give an attractive appearance with the talent he has and the Saudi Arab competition would be more attractive if it were true to accept an offer from the SPL club.
Atletico Madrid will definitely not hold him again because the offer from the SPL is always of high value and this is also an opportunity for Morata to earn a higher salary and enjoy the game before he later decides to retire.