​Real Madrid midfielder Casemiro has urged his teammates not to lose their heads after they slipped to seven points behind leaders Barcelona after a damaging 1-0 defeat to Real Betis.

Zinedine Zidane's men dominated the game but were unable to break the deadlock. As they poured forward in numbers towards the end of the game, Betis struck on the counter, with Antonio Sanabria heading in the winner in the 94th minute.

Casemiro believes his side were unfortunate to lose the game but insists they should be calm as they look to overturn Barcelona's seven point lead.

Speaking after the game, as reported by ​FourFourTwo, he said, "We have to have a cool head because maybe a point would be better than a defeat."

"It was bad luck. Everything we created, everything we tried, we fought. It's football. Sometimes it's unfair. We have to congratulate Betis, who fought, worked and made a good game here."

The Brazil international was unwilling to talk about Barcelona, claiming that Real Madrid have to concentrate on themselves if they are to retain their league title.

On asked about Barcelona being the league leaders, he said, "We have to think about ourselves."

While Barcelona have won all their five games so far, Real Madrid have slipped up, with draws against Valencia and Levante along with this defeat leaving them a mountain to climb this early in the season. Los Blancos next face Deportivo Alaves in the league before a Champions League tie against Borussia Dortmund.