Holders Bayern Munich and Spanish champions Barcelona will be among the front-runners, while Rafa Benitez's Italian side face a potential "group of death"Champions League group stage draw in Monaco have been decided and the biggest news is the presence of last year's runners-up Borussia Dortmund in pot three and Rafa Benitez's Napoli in pot four.
The 32 qualifiers have been divided into four pots, with the restriction that teams from the same national association cannot be drawn together.
|ALTERNATIVE CHAMPIONS LEAGUE DRAW
There are few surprises in pot one as holders Bayern Munich take their place alongside powerhouses such as Barcelona, Manchester United and Chelsea - although the occupation of Portuguese duo Porto and Benfica will raise some eyebrows.
Last year's finalists Borussia Dortmund have to settle for a place in pot three, meaning they could once again end up in a tricky pool - with a group featuring Barcelona, Paris Saint-Germain and Napoli on the cards.
Another potential "group of death" could be one consisting of Belgian champions Anderlecht - who are only in pot four - and giants Manchester City, Juventus and reigning European champions Bayern Munich.
The draw takes place on Thursday in Monte Carlo at 1645BST and you can follow it live on Goal.
The Champions League group stage pots for 2013-14 are as follows: