Los Blancos changed to a 4-4-2 formation for the win at Stamford Bridge, which puts them on course for a place in the last four, against either Manchester City or local rivals Atletico Madrid.
Federico Valverde played on the right side of midfield that night, giving Vinicius Junior a free role around Karim Benzema in the lead. While a three-man midfield is Madrid’s go-to system, Ancelotti can be content with trying to repeat his feat in the first leg at the Bernabeu.
For the weekend’s win over Getafe, Real rested Dani Carvajal, Ferland Mendy, Modric and Kroos as they won 2-0.
Eden Hazard (ankle), Isco (back) and Luka Jovic (ankle) missed the first leg and Saturday’s game, and are expected to be out again. Eder Militao is suspended at the back.
Real Madrid XI predicted: Courteous; Carvajal, Nacho, Alaba, Mendy; Valverde, Kroos, Casemiro, Modric; Vinicius, Benzema.