If several European clubs cannot afford to pay salaries that are too large then the Saudi Arabian League can make it happen, but rumors about Sergio Ramos are not very widespread in this League even though several clubs there have also expressed interest. Maybe in the next few weeks we will hear more about Sergio Ramos and I believe he is more likely to move to Saudi Arabia than Sevilla.
Old super star players have a high ego, no one will admit if their performance are declining due to get older and keep demanding high salary. There's no league willing to pay high salary for a popular player without good performance except Saudi Professional League.
So their options are either retire or joining Saudi Arabia, this can't be denied.
Even saudi was willing to pay european player with high salary caused by its the only way to attract him to fulfill saudi's target to host world cup 2030. It's clearly stated in so much news if ramos agreed with conditions mentioned by sevilla in the contract.
Ramos has even agreed to be paid with low fees. Sevilla is not having money to recruit a good player. The transfer season is also coming to its end. Saudi would not be willing to pay an outrageous sum of money if the league was as big as premier league.