The draw for the eight groups, featuring 32 teams in all, begins live on Eurosport 1 at 5pm BST on Thursday at the Grimaldi Forum in the Principality.
It's only the second time since 2010 that an Italian side has come through the Champions League play-off unscathed. Most of the top clubs in the world that you'd expect to see are back - Real Madrid, FC Barcelona, Bayern Munich and the like - but there are some new faces too.
Because of the new draw format that was put into place last season, Pot 2 is extremely strong. There's one other newcomer - RB Leipzig - who qualified automatically through their position in the Bundesliga.
Celtic, meanwhile, could potentially be getting the above giants and one of Liverpool/Tottenham or Roma/Napoli, in a draw that would continue their rotten luck in group stage pairings. That said, it's still pretty absurd to have teams like Barcelona, Atletico, PSG, and BVB in pot 2 when teams like Spartak, Shakhtar, Monaco, and Benfica are in pot 1. Thanks to the away goal, the Ukrainian team goalkeeper Anton Kanibolotskiy has included Azerbaijan in the list of participants of the group stage of the Champions League.
So we pretty much knew that Tottenham Hotspur were destined for Pot 3, but this kind of puts it in perspective at just how hard the draw could be for Tottenham.
The draw will start with Pot 4, assigning each team from the pot into a group, then continue on with Pot 3, then Pot 2 and Pot 1. Remember that English clubs can not be drawn against each other until the quarter-finals at the earliest.