Carlo Ancelotti said midfielders Luka Modric and Toni Kroos are "untouchable" at Real Madrid but "that doesn't mean they play every game" with competition from youngsters Aurelien Tchouameni, Eduardo Camavinga and Federico Valverde.

Modric missed Thursday's 3-2 Copa del Rey comeback win at Villarreal through injury, while Kroos was substituted at 2-0 down with replacement Dani Ceballos contributing to all three Madrid goals, scoring the 86th minute winner.

Madrid are facing a tough fixture list, with Sunday's LaLiga trip to Athletic Club followed by a cup quarterfinal derby with Atletico Madrid next Thursday, and then hosting in-form Real Sociedad next weekend.

"The squad is untouchable," Ancelotti said in a news conference on Saturday, when asked if managing the transition from one generation to another was his toughest job as coach.