The matches, the ways to win, the links you need, the lowdown: welcome to our bitesize guide to Tuesday and Wednesday's UEFA Champions League action.
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The key info
Group A: Manchester United v Benfica, Basel v CSKA Moskva
Group B: Celtic v Bayern München, Paris Saint-Germain v Anderlecht
Group C: Atlético Madrid v Qarabağ, Roma v Chelsea
Group D: Olympiacos v Barcelona, Sporting CP v Juventus
Group E: Sevilla v Spartak Moskva, Liverpool v Maribor
Group F: Napoli v Manchester City, Shakhtar Donetsk v Feyenoord
Group G: Beşiktaş v Monaco (18:00CET), Porto v RB Leipzig
Group H: Tottenham Hotspur v Real Madrid, Borussia Dortmund v APOEL
*All kick-offs 20:45CET unless otherwise stated
How to follow
- Click on the match links for live coverage from our designated home and away reporters, starting the day before the game
- Get involved on social media with @ChampionsLeague on Twitter and Facebook – where we go live! – and uefachampionsleague on Instagram
- Live audio commentary and updates in our matchnight radio show on the official app or here from 19:30CET to 23:30CET on Tuesday and Wednesday – then download the podcast
- Where to watch: all of our TV partners
- Watch highlights of every game from 24:00CET on the night
Play and win
- Update your #UCL Fantasy Football team
- Guess the results with #UCL Predictor
- Vote and win on Thursday: Goal of the Week, Player of the Week, GIF of the Week
The big five: what to watch
- Last 16 in sight
Manchester United, Basel, Paris, Bayern, Chelsea, Barcelona, Juventus, Manchester City, Beşiktaş, Tottenham and Real Madrid all go into the games knowing the right results could seal round of 16 slots with two games to go. However, an early exit could beckon for CSKA, Benfica, Celtic, Anderlecht, Qarabağ, Sporting, Olympiacos, Maribor, Anderlecht, Dortmund or APOEL.
- Reversal of fortunes?
The matches are the reverse of matchday three and the likes of Sevilla (beaten 5-1 at Spartak), Monaco (defeated 2-1 at home by Beşiktaş) and Maribor (who went down 7-0 to Liverpool) are all hoping that a lot can change in two weeks.
- Wembley 'final'
After their 1-1 draw last time out, Tottenham and Madrid meet at Wembley knowing that with a mutual six-point cushion of Dortmund and APOEL in Group H, victory for either side would all but seal first place. The match sold out at the start of October and the game provides a fresh showdown between this season's five-goal top scorers Harry Kane and Cristiano Ronaldo.
- Perfect storm
Both Manchester sides, Paris, Barcelona and Beşiktaş maintained their perfect starts last time out. With the Manchester pair joined by Spurs, Chelsea and Liverpool in at least joint leading their groups, England has every chance of being the first nation to have five teams in the round of 16.
- Goals continue to flow
The tally of 156 goals scored so far in the 48 group games means we are on course to beat the record of 292, set in 1999/2000. Make sure you tune in on time, too: 29 of the goals have been scored in the opening quarter-hour of games, more than any other 15-minute segment.