Ramos is a strong defender, but we must know that he is no longer in their best form. I am not pessimistic about his contribution, he may bring positive impact for Sevilla defense line. However, with the current situation on Ramos, I don't think Ramos can significantly improve the strength of Sevilla defense. Moreover, Ramos often gets injured, he may be absent in some matches.
Sevilla actually has a good striker, En-Nesyri. This player often shows amazing contribution for Sevilla. But it is good if Sevilla has another strong striker, it will strength the power of Sevilla attacking. Anyway, there is something crucial for Sevilla, they lost their main goalkeeper. I think they also need a strong goalkeeper now.
Currently, the best contribution Ramos can make is his experience as the world's best defender for several years. I think this will really help Sevilla's defense. At least they will have a strong and neat defense line.
And for strikers, I think Youssef En-Nesyri is quite good. Although they still need additional attackers to strengthen the attack line.
Losing a world-class goalkeeper is certainly a very worrying thing. I think the substitute goalkeeper is at a much different level to the main goalkeeper. Hopefully Sevilla can fix this as soon as possible.