Real Madrid defender Marcelo had no time for excuses as they suffered a first La Liga defeat of the 2019-20 season.
Zinedine Zidane's side struggled to make an impact against the newly promoted side, after Lago Junior scored an early goal, however the Brazilian international was critical of their approach.
"We have tried everything to win this game, but this did not happen.
"They scored an early goal, and we found it difficult to react.
"However this is not an excuse for not scoring or finding a way to win the game."
Marcelo returned to the side following injury, replacing Ferland Mendy at left back, and he has warned his team mates that they face a battle to win La Liga.
"The league is always difficult to win.
"No we are no longer top and we know we will have to work hard in the coming games.
"But we are working hard to achieve our objectives."
Marcelo also called on his Brazilian compatriot Vinicius Junior to grasp his opportunity to play in the first team, and to show more consistency in his play.