The 2019/2020 UEFA Champions League group stage draws will be conducted in Monaco on Thursday, August 29.
It will be live-streamed on UEFA's official website from 18:00 CET.
Chelsea missed out on the competition last season after finishing outside the Premier League top four.
Liverpool are the defending champions.
The 26 teams given direct entry to the group stage under the new competition system will be joined by the six winners of the play-off.
The teams will be split into four seeding pots.
Pot 1 comprises the holders, the UEFA Europa League winners and the champions of the six highest-ranked nations.
Pots 2 to 4 are determined by the club coefficient rankings.
No team can play a club from their own association, with the exact draw procedure to be confirmed before the ceremony.
The draw also establishes the groups for the UEFA Champions League path of the UEFA Youth League.
The group stage will take place on September 17 and 18, while the grand final will take place on May 30, 2020.