Celtic begin their new-look Champions League campaign against Slovan Bratislava at Parkhead this evening, kick-off 8.00pm.
Brendan Rodgers' side travel to Germany to face Borussia Dortmund in matchday two then take on Atalanta in Italy in matchday three on October 23.
The William Hill Premiership leaders also face RB Leipzig, Club Brugge, Dinamo Zagreb, Young Boys and Aston Villa in the revamped competition.
The top eight clubs will qualify automatically for the last 16, with those finishing ninth-24th going into play-offs. The teams who finish 25th-36th are eliminated.