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.
Article top media content
The key info
Group E: Spartak Moskva v Sevilla, Maribor v Liverpool
Group F: Manchester City v Napoli, Feyenoord v Shakhtar Donetsk
Group G: Monaco v Beşiktaş, RB Leipzig v Porto
Group H: Real Madrid v Tottenham, APOEL v Borussia Dortmund
Group A: Benfica v Manchester United, CSKA Moskva v Basel
Group B: Bayern München v Celtic, Anderlecht v Paris Saint-Germain
Group C: Qarabağ v Atlético Madrid, Chelsea v Roma
Group D: Barcelona v Olympiacos, Juventus v Sporting CP
- All games at 20:45CET execpt Qarabağ v Atlético (18:00CET)
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
- Perfect showdown
There is only one section in which two teams have perfect records – Group H, where Real Madrid and Tottenham face off on Tuesday at the Santiago Bernabéu before a Wembley return a fortnight later. Locking horns will be two of the competition's deadliest strikers, all-time record-holder Cristiano Ronaldo and Harry Kane, the first player to have five goals after two matchdays.
- Bayern back to the future
The last time Jupp Heynckes led Bayern in Europe, they were winning the 2013 final at Wembley. Out of retirement for a fourth spell at the helm, the 72-year-old will bid to become the oldest man to coach a UEFA club competition winner. He rejoins the action at home to Celtic, who are level on three points with Bayern following the latter's 3-0 loss at Paris that curtailed Carlo Ancelotti's reign.
- Fifty seasons on
Whenever Benfica take on Manchester United, thoughts turn inevitably to the 1968 final – especially in this 50th anniversary season. The fixture also brings José Mourinho back to the club he coached for just nine games in 2000 (eerily, it was Heynckes he took over from), as he chases a third win in the group. For Benfica, meanwhile, the aim is to recover from the 5-0 reversal at Basel last time out.
- On a roll
Along with Madrid, Spurs and United, five other teams have perfect starts to maintain this week. On Tuesday, Manchester City meet Napoli, who ended the English club's 2011/12 UEFA Champions League debut in the group stage, while Beşiktaş visit a Monaco side surprisingly on a single point. Paris travel to point-less Anderlecht, now coached by Hein Vanhaezebrouck, on Wednesday when Chelsea – who like the French capital club have bagged eight goals already – host Roma. Barcelona play Olympiacos.
- Second chance for first-timers
Neither of this season's group stage debutants have registered a victory, but both will hope to do so in their second home games. Leipzig welcome Porto on Tuesday before Qarabağ attempt to get off the mark against Atlético in Wednesday's early kick-off.