Manchester United and PSG were on the losing side on Matchday 3, while Juventus were back to winning ways with Ronaldo in the lineup.
Full results:
Shakhtar Donetsk 0-6 Borussia Monchengladbach
Lokomotiv Moscow 1-1 Atletico Madrid
RB Salzburg 2-6 Bayern Munich
Real Madrid 3-2 Inter Milan
Manchester City 2-0 Olympiacos
Porto 3-0 Marseille
Atalanta 0-5 Liverpool
Midtjylland 1-2 Ajax
Zenit 1-1 Lazio
Barcelona 2-1 Dynamo Kyiv
Club Brugge 0-3 Borussia Dortmund
Sevilla 3-2 Krasnodar
Chelsea 3-0 Rennes