The UEFA Champions League organisation theatre pull takes place on Thursday during 18:00CET and will be streamed live in a DrawCentre.
Which teams are in that pots?
Pot 1: Real Madrid (ESP, holders), Bayern München (GER), Juventus (ITA) Benfica (POR), Chelsea (ENG), Shakhtar Donetsk (UKR), Monaco (FRA), Spartak Moskva (RUS)

Pot 2: Barcelona (ESP), Atlético Madrid (ESP), Paris Saint-Germain (FRA), Borussia Dortmund (GER), Sevilla (ESP), Manchester City (ENG), Porto (POR), Manchester United (ENG)
Pot 3: Napoli (ITA), Tottenham Hotspur (ENG), Basel (SUI), Olympiacos (GRE), Anderlecht (BEL), Liverpool (ENG), Roma (ITA), BeÅŸiktaÅŸ (TUR)
Pot 4: Celtic (SCO), CSKA Moskva (RUS), Sporting CP (POR), APOEL (CYP), Feyenoord (NED), Maribor (SVN), QarabaÄŸ (AZE), RB Leipzig (GER)
Draw notes
The following awards will be also be presented during a draw:

Road to Kyiv
12/13 September: Group stage, matchday one
26/27 September: Group stage, matchday two
17/18 October: Group stage, matchday three
31 October/1 November: Group stage, matchday four
21/22 November: Group stage, matchday five
5/6 December: Group stage, matchday six
11 December: Round of 16 draw
13/14 20/21 February: Round of 16, initial leg
6/7 13/14 March: Round of 16, second leg
16 March: Quarter-final draw
3/4 April: Quarter-finals, initial leg
10/11 April: Quarter-finals, second leg
13 April: Semi-final and final draw
24/25 April: Semi-finals, initial leg
1/2 May: Semi-finals, second leg
26 May: Final (NSK Olimpiyski, Kyiv)
Article source: http://www.uefa.com/uefachampionsleague/news/newsid=2493305.html?rss=2493305+Champions+League+group+stage+draw+pots+confirmed