Whilst Los Che only had four shots on target throughout the duration of the encounter, Navas made a big contribution with a number of key saves.
"Keylor saved us, we must say it," he explained in his post-match press conference.
"We suffered for 20 minutes but we deserved our victory, especially for how we started the match."
Keylor, himself, stated later in the mixed zone: "Anyone who thinks that we aren't going to fight in LaLiga is very wrong.
"I think we know that it will be very difficult to win the league.
"We aren't going to throw anything away."