22 automatic entrants will be joined by 10 play-off winners at the Grimaldi Forum, where the 32 sides will be split into four seeding pots, with one from each drawn randomly into eight possible groups.
United are in Seeding Pot 1, which means the Reds cannot be pitted against Barcelona, Real Madrid, Chelsea, Arsenal, Porto or Benfica in the group stage. And as a team cannot be paired against another from the same country, local rivals Manchester City will also be avoided.
Once the draw is completed, a computer will then determine the final position of the clubs within their group and the order of the home and away matches. At present, these are the provisional dates...
Matchday 1: 17/18 September. Matchday 2: 1/2 October. Matchday 3: 22/23 October. Matchday 4: 5/6 November. Matchday 5: 26/27 November. Matchday 6: 10/11 December.
Remember, you can follow Thursday’s group stage draw via ManUtd.com’s live rolling blog, as well as the club’s official Twitter account @ManUtd.