"Everything is in order".
Los Blancos were two goals up midway through the second half, but Hugo Mallo's goal gave Santiago Solari's side a nervy twenty minutes, before goals from Sergio Ramos and Dani Ceballos put the game beyond Celta's reach.
That meant four wins from four games since Solari stepped into the role, following just one point from the previous five La Liga outings under previous coach Julen Lopetegui.
"What I can say is that we are very happy (with Solari)", club spokesman Emilio Butragueno said.
'We have very good players and the team is getting better and better, we took advantage of our chances and we are very happy, we must continue in this way.
Trump ruled out cemetery motorcade as disruptive
The visit was planned for the Aisne-Marne American Cemetery in France - where USA war dead were being honored - because of rain. Addressing one veteran, he joked: "You look so comfortable up there under shelter as we're getting drenched".
Mendez added a second for Celta with a deflected strike from the edge of the area with nearly the last kick of the game, but it did little to take the shine off a fine night for Solari and his side.
He indicated in his opening press conference that he was open to keeping the job full-time.
"His first goal was spectacular and he also created the second one", Solari said. I've been here with other teams, I've played and sweated in the shirt of this club. Here we outline seven reasons why he should be named Real Madrid's next manager. "I want to be a part of it".
Real Madrid's dressing room is littered with world-class players who are among the best in their respective positions and have won just about everything there is to win in the game of football at both club and global level.
"The most important thing is to do whatever is necessary for the good of the team, nothing else matters", he told reporters when asked if he expected to be given the job.
The challenge for Solari will be to manage the dressing room when results take a turn for the worse.
Both players will thus be unable to play for their countries in the forthcoming global break and they will miss their side's last two Champions League group matches, as well as at least three Liga Santander matches.
It shouldn't be wholly judged on that, however, with RFEF forcing Madrid's hand somewhat.