Michy Batshuayi scored a 94th-minute winner as Chelsea snatched a dramatic victory against Atletico Madrid to maintain their 100% start in Champions League Group C.
Paris St-Germain outgunned Bayern Munich in a heavyweight Champions League showdown to go three points clear at the top of Group B.
An own goal by former Liverpool defender Sebastian Coates was enough to earn Barcelona a Champions League Group B victory away to Sporting Lisbon.
Juventus secured their first Champions League points of the season with a 2-0 Group D win over Olympiakos.
FK Qarabag 1:2 Roma
Basel 5:0 Benfica
CSKA Moscow 1:4 Manchester United
Paris Saint Germaine 3:0 Bayern Munich
Anderlecht 0:3 Celtic
Atletico Madrid 1:2 Chelsea
Juventus 2:0 Olympiakos
Sporting Lisbon 0:1 Barcelona