Real lost their top of the table status after the 1-0 shock.
Ramos said afterwards: "It's a shame to lose the match and drop three points. It's logical for inferiority to manifest itself when you're one man down; it's harder to reach the goal and score.
"We knew it wouldn't be easy. You can win or lose the league here. We wanted to take three points and we failed to take them. The only thing we can do is disconnect and look ahead. Opponents make things difficult for us; today proved this."