Real Madrid were ruthless in their 5-0 thrashing of Kairat Almaty in their first UEFA Champions League clash in Kazakhstan on Tuesday night.
Eintracht Frankfurt stormed to a 5-1 home victory over Galatasaray, while Bayer Leverkusen showed late resilience to snatch a 2-2 draw away at Copenhagen on a thrilling night of Champions League action.
Erling Haaland scored his 50th Champions League goal as Manchester City eased past a ten-man Napoli 2-0 at the Etihad Stadium on Thursday night.
Barcelona kicked off their UEFA Champions League campaign with a hard-fought 2-1 win over Newcastle at St. James Park, with Manchester United loanee Marcus Rashford scoring both goals.
Liverpool's 3-2 victory over Atlético Madrid on Wednesday night was memorable not only for the dramatic stoppage-time winner by Virgil van Dijk but also for a historic milestone achieved by teenager Rio Ngumoha.
Chelsea's Champions League return ended in frustration as they fell to a 3-1 defeat against Bayern Munich at the Allianz Arena, with Cole Palmer lamenting his side's inability to rise to the occasion.