The reigning Champions League holders get their group stage campaign underway as Real Madrid host Sporting Lisbon hoping to become the first team to defend the title.
No team has managed to retain the Champions League since its 1992 inception, but Madrid are one of the pre-tournament favourites to lift Europe's premier trophy for the 12th time in Cardiff next May.
Results from last night:
Club Bruges 0-3 Leicester
Tottenham 1-2 Monaco
Man City 4-0 Monchengladbach
Lyon 3-0 Dinamo Zagreb
Real Madrid 2-1 Sporting Lisbon
Juventus 0-0 Sevilla
Legia Warsaw 0-6 Borussia Dortmund
FC Porto 1-1 FC Copenhagen
Bayer Leverkusen 2-2 CSKA Moscow