Holders FC Bayern München will kick off their defence on Tuesday 17 September against PFC CSKA Moskva after the fixtures were confirmed following the draw.
UEFA has issued the fixture list for the entire 2013/14 UEFA Champions League group stage in the wake of the draw in Monaco earlier today.
This season's group stage, featuring 32 teams and running from September to December, will begin in earnest with matchday one on 17/18 September. Holders FC Bayern München kick off their title defence on the Tuesday with the visit of PFC CSKA Moskva. On the same night, Manchester United FC welcome Bayer 04 Leverkusen, Galatasaray AŞ play Real Madrid CF and RSC Anderlecht face SL Benfica at the Lisbon stadium where the 24 May final will take place.
On the Wednesday, Celtic FC's reward for qualifying in such dramatic fashion is a trip to AC Milan, while also in Group H FC Barcelona will meet AFC Ajax. In Group F Olympique de Marsille open against Arsenal FC with SSC Napoli playing the 2013 runners-up, Borussia Dortmund.
The other five matchdays are scheduled for 1/2 October, 22/23 October, 5/6 November, 26/27 November and 10/11 December, with eight games taking place on each night of the matchweek.