"We had a chance to cut points and we played well," said Casemiro. "We had a lot of opportunities, but it's football, the ball didn't want to go in.
"But when it does, it won't stop, so we have to keep working."
It was the first time in 182 days - since the Champions League final in Cardiff - that Real had played with that same starting XI.
"We have a great squad and we've shown it today," Casemiro continued.
"The good thing is that we want to play everyone, and once Bale is back, he will be very important."