Celtic will travel to face last season's runners up Borussia Dortmund and Aston Villa as part of this season's Champions League campaign.
In the revamped league phase - which has replaced the traditional group stage - the Scottish champions were drawn against RB Leipzig, Club Brugge, Young Boys and Slovan Bratislava at Celtic Park.
Brendan Rodgers' side will travel Dortmund and Villa Park, as well as Europa League champions Atalanta, and Dinamo Zagreb.
The date and times for the fixtures are expected to be confirmed on Saturday.
The first round of games is scheduled for the 17-19 September, with the final round of matches taking place on 29 January.
Celtic's recent record in European football's top competition is poor, having failed to reach the round of 16 since the 2012-13 campaign.
In the past two seasons at this level, they have finished bottom of their group, with just one victory.
That 2-1 success against Feyenoord last December was their first Champions League home win in 10 years following frustrating near things against Atletico Madrid and Lazio in Glasgow.
Now they will need to finish in the top 24 places of the 36-team table to give themselves a chance of reaching the last 16 for the first time in 12 years.