Returning Real Betis star Isco admits defeat at Rayo Vallecano wasn't good enough.
Rayo inflicted a third consecutive defeat on Betis.
Fit-again Isco later said: "Yes, it hurts a lot, doesn't it? Disappointed by the match, by the defeat, by the dynamic of losing three games in a row. It's difficult if we want to qualify for Europe, but hey, there's a lot left, we have to reverse the situation and get back on track as quickly as possible.
"We have failed, they have also scored goals very easily against us on a few occasions. And well, we have to change our attitude a little, a little more ambition, go for the three points from the first minute and hopefully we can turn things around.
"Yes, we all have to give a little more, we have to be aware of what we are risking in each game. Today they were risking their lives too and well, as I said, right? They scored two very easy goals and if we want to be in Europe we cannot fail like this."