Real Madrid manager Jose Mourinho has labelled his side's performance in Saturday's 1-0 loss to Granada as "horrible", insisting it is unacceptable for fatigue to be an issue for professional players.
A 22nd minute Cristiano Ronaldo own goal was enough to seal the upset win for the hosts, heaping further misery on Real's dismal season in La Liga.
Mourinho's side slumped to their fifth defeat of the campaign and are no certainty of finishing in third-place with Malaga just eight points behind and two games in hand.
Karim Benzema had a clear-cut chance to equalise for Real just six minutes from time but his failure to hit the net and a tired performance from the Spanish champions led Mourinho to condemn the determination of Los Blancos.
"I think the result is fair. There have been too many defeats," he said. "Granada did their job, they scored their goal. They defended in the second half with all of their heart and soul. They have a new coach, new players and had a great night of football here with Real Madrid in front of them. They did everything that they could to get this result. We should have scored a goal but because of the great effort that Granada made, I think that the three points have gone to the team that deserved them.
"The negative result is always the most important. We didn't even manage a draw. That is what bothers me about the result, but the team's first half performance bothers me a lot, it was horrible. In the second half we dominated and we had a chance to equalise but it was not enough to satisfy me."
A fiery Mourinho took a jibe at reporters who questioned his tactical nous, although he ultimately accepted the blame for Real's loss.
"The buck stops with me. You lot always say that same thing," he said. "When we win and we play well then it happens on its own but when we don't it is the coach's responsibility. Today we lost and did not play well. Today it didn't happen on its own, today I'm the one responsible".
Although quick to avoid making excuses for the defeat, Mourinho suggested a four-day turnaround from Wednesday's Copa del Rey clash with Barcelona was insufficient.
"There is one thing that has been clear for a long time and that is that there are teams that do not have any control over their schedules and the planning of the matches," he said. "Wednesday was an important match and tremendous physical effort for both teams but one plays today and the other tomorrow.
"But this team had to respond in a different manner. Some of the players who played today played on Wednesday and others didn't. There are some of them who were tired because [they] worked hard on Wednesday and there are others that I do not know why they were tired because they were on the bench or in the stands."
While few believed Granada would be a push over for Real, incumbent boss Lucas Alcaraz, who replaced Juan Antonio Anquela earlier in the week, said he had faith in his players and was unsurprised by the scalp.
"I was the one who had said this week that we could win, so I was surprised less than others with the result," he said. "I have not made history, but it was a day of celebration for Granada.
"Maybe we did not see lots of the ball, but the attitude and solidarity of the players deserves credit. These games demand that you give almost all of your physical strength and attention, but we cannot delude our fans and their expectations [shouldn't rise]."