23 February 2021
Atletico de Madrid – Chelsea FC
Referee: Felix Brych (GER, photo)
Assistant Referee 1: Mark Borsch (GER)
Assistant Referee 2: Stefan Lupp (GER)
Fourth Official: Christian Dingert (GER)
VAR: Marco Fritz (GER)
AVAR: Sascha Stegemann (GER)
Referee Observer: Kyros Vassaras (GRE)
Lazio – Bayern München
Referee: Orel Grinfeld (ISR)
Assistant Referee 1: Roy Hassan (ISR)
Assistant Referee 2: Idan Yarkoni (ISR)
Fourth Official: Gal Leibovitz (ISR)
VAR: Juan Martinez Munuera (ESP)
AVAR: Roi Reinshreiber (ISR)
Referee Observer: Carlos Velasco Carballo (ESP)
24 February 2021
Atalanta BC – Real Madrid
Referee: Tobias Stieler (GER)
Assistant Referee 1: Christian Gittelmann (GER)
Assistant Referee 2: Eduard Beitinger (GER)
Fourth Official: Sandro Schärer (SUI)
VAR: Bastian Dankert (GER)
AVAR: Harm Osmers (GER)
Referee Observer: Martin Ingvarsson (SWE)
Borussia Mönchengladbach – Manchester City
Referee: Artur Soares Dias (POR)
Assistant Referee 1: Rui Tavares (POR)
Assistant Referee 2: Bruno Rodrigues (POR)
Fourth Official: Hugo Miguel (POR)
VAR: Joao Pinheiro (POR)
AVAR: Massimiliano Irrati (ITA)
Referee Observer: Alfredo Trentalange (ITA)