Updated: Mar 12
The result means Real Madrid are now two points behind bitter rivals Barcelona despite their victory in the El Clasico last weekend.
Zinedine Zidane labelled Real Madrid's 2-1 loss to Real Betis as their "worst game of the season".
The Frenchman took responsibility for Los Blancos’ recent LaLiga defeat Betis on Sunday.
The result means Real Madrid are not two point behind bitter rivals Barcelona despite their victory in the El Clasico last weekend.
"I blame myself for everything. I am responsible," the Madrid coach said.
"I will not explain what has happened but it has been our worst game of the season."
He continued: "I will defend my players, if I have something to say I will tell them.
"We have lost many balls, which never happens to us and that has been our problem."