Following Ramos' record-breaking appearance against Norway saw him become Spain's most capped player in history, Perez was full of praise for his player.
It was his 168th game for his country, surpassing the record set by former teammate Iker Casillas.
"Beyond just his condition, which we can all see," Perez said, "technically and physically, he has other aspects like his ambition and his leadership which have made him a legend not just for Real Madrid and Spain, but for world football.
"All of these conditions keep going for him like he is just starting out and I'm convinced the Sergio Ramos legend will continue."
It echoed sentiments shared by the Spain captain.
"I still have that same ambition to keep winning and improving and that's what keeps me here, that dream I've had since I was a kid," Ramos himself explained.
"It makes me very happy, it's flown by, I've had unique moments and will be eternally grateful to football."