The loss means Madrid's qualification for the last-16 will go down to the last group stage game against Borussia Monchengladbach at home.
AS report that Ramos told his team-mates: "We are one victory away from getting through in the Champions League, we depend on ourselves, and we have to give everything. This is Real Madrid, gentlemen. Together, we've come out of worse."
Los Blancos have reached the Champions League knockout stage in all 24 of their previous group-stage campaigns, but the pressure is mounting this year. They have conceded nine goals in five games - their worst defensive record at this stage of the competition, and need to beat M'Gladbach next week in order to achieve qualification.
Real are also fourth in LaLiga having suffered three defeats from their opening 10 matches, and currently sit seven points behind league leaders Real Sociedad.
According to Marca, the board has identified Mauricio Pochettino and Raul as potential replacements for Zidane. But are keen on the former Tottenham boss as they are reluctant to appoint Raul so early in his coaching career, particularly with the first team struggling for form as they currently are.