The Spaniard, who will be looking to captain Zinedine Zidane’s men to an unprecedented third consecutive win in the competition, believes it is far too early to draw comparisons.
“Crissy and Messi are in another orbit,” Ramos told reporters ahead of Saturday’s Champions League final.
“Some players are in fashion. Some disappear; some become great players. Salah is an enormous player. We will see what happens.”
However, Liverpool manager, Jurgen Klopp, has insisted that he’s not interested in the comparison between Salah, Ronaldo and Messi.
Klopp said that he believes Salah, who has scored 44 goals in all competitions for the Reds this season, has the potential to become great.
“It is not important. No manager is interested in that – we are only interested in performing,” Klopp told reporters.
“Messi and Ronaldo deserve all the praise because they were constantly over years on that level.
“Now they are 30-something they are still keeping that level but now everyone is waiting for the next one. Mo has the potential to go there over the next few years.
“This season was exceptional, unbelievable, but there is still one more game to go. The next few years will show if he can do something similar [to Messi and Ronaldo] but it is not that easy otherwise more players would have done it.
“These two players are the most consistent on a higher level over the last 10 years and that makes them really special. Mo has had a good start but we will see what happens in the next few years.”