Ancelotti questioned as Real Madrid face Alaves
Los Blancos are four points behind leaders Barcelona, who visit Leganes on Saturday, and need to bounce back from their 3-0 thrashing by Arsenal on Tuesday in the Champions League.
Madrid host Arsenal on Wednesday in the second leg of that tie, in which they insist they can come back, but by focussing on that they would be at risk of slipping up in Vitoria.
Alaves, 17th, are fighting for La Liga survival and despite Madrid's status as Spanish and European champions, will believe they can get at Ancelotti's fragile side.
They have let in 11 goals in the last four games and have suffered two consecutive defeats, by Arsenal and last weekend in La Liga against Valencia.
"I feel responsible for what happened," admitted Ancelotti after the crushing loss at the Emirates.
Madrid's defeat has led to reports in Spanish media that they will not keep coach Ancelotti beyond the end of the season, with Bayer Leverkusen's Xabi Alonso, a former Madrid star, linked.
After just two defeats across all competitions last season, this season Madrid have suffered 11.
"Ancelotti is playing... for the credibility of his project, and maybe his position ahead of next season," wrote Madrid daily Marca.
Ancelotti may insist his team work together more against Alaves, criticising his collection of stars for trying to fight their way back individually after Declan Rice's free-kick double for Arsenal.
"We were not capable of a joint reaction, united," reasoned the coach.
"We tried too many individual moves, and that cost us because we lost our order, and from there they controlled the ball and the result."
The coach said his team has struggled throughout the current campaign to defend as a unit.
"It's something we've had a problem with through the season, the difficulty of being a compact block in the good moments but also in the ones which are not good," he added.
Madrid are hopeful Dani Ceballos can return to the squad for the Alaves match, with the midfielder out since February with a leg injury.
The former Arsenal playmaker has found form this season and his absence further exacerbates Madrid's difficulty in coping without departed midfield maestro Toni Kroos, who left last summer.
Aurelien Tchouameni's return should also help protect the defence, after he missed the Arsenal first leg through suspension.
Madrid's goal is a victory to maintain their title defence ambitions, before they try to rescue their Champions League campaign against Arsenal at the Santiago Bernabeu.
Player to watch: Christantus Uche
The Nigeria midfielder has been playing in an attacking role for Getafe this season and produced two assists last week to help Jose Bordalas' side thump Valladolid. A powerhouse presence, Uche has helped Getafe climb away from danger up to 11th and he will be looking to create havoc on Saturday when they host lowly Las Palmas.
Key stats
3 - games without a win for Real Madrid across all competitions
14 - draws for Osasuna this season from 30 league games
232 - Barcelona's Pedri has 232 passes into the final third, more than any other player
Fixtures
Friday (all times GMT)
Valencia v Sevilla (1900)
Saturday
Real Sociedad v Mallorca (1200), Getafe v Las Palmas (1415), Celta Vigo v Espanyol (1630), Leganes v Barcelona (1900)
Sunday
Osasuna v Girona (1200), Alaves v Real Madrid (1415), Real Betis v Villarreal (1630), Athletic Bilbao v Rayo Vallecano (1900)
Monday
Atletico Madrid v Valladolid (1900)