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FT: Milan 3-1 Club Brugge & Monaco 5-1 Red Star Belgrade in early games
FT: Arsenal 1-0 Shakhtar - own goal gives hosts victory
FT: Aston Villa 2-0 Bologna - McGinn free-kick opens scoring & Duran doubles lead
Vinicius Jr hits hat-trick as Real Madrid come from 2-0 down to win 5-2 against Dortmund
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Watch highlights of every Champions League game from 22:00 BST on Wednesday on BBC iPlayer and the BBC Sport website and app.
There will also be a Champions League Match of the Day on BBC One on Wednesday, from 22:40 to 00:00.
Monaco 3-1 Red Star Belgrade
Goal of the league phase?!
Monaco centre-back Wilfried Singo has just grabbed his side's third thanks to a thunderbolt from 40 yards out which fizzes into the top corner.
Think Vincent Kompany against Leicester.
Aston Villa v Bologona (20:00 BST)
Image source, Getty ImagesMatty Cash says Aston Villa "have not got a ceiling" as they seek a first major honour since the 1996 EFL Cup.
Villa are looking to build on their memorable 1-0 win against Bayern Munich in their previous Champions League outing.
"In the last four years since I joined, the club has just gone through the roof," said the Villa defender.
"I think it can go all the way to the top."
Arsenal v Shakhtar Donetsk (20:00 BST)
A tricky week this week for Mikel Arteta's Arsenal. Can they recover from the defeat against Bournemouth at the weekend?
In the Champions League, they began their campaign with a 0-0 draw against Atalanta then beat Paris St-Germain 2-0 last time out.
On paper it looks like a routine evening at the Emirates against Shakhtar Donetsk - who have lost one and drawn one of their European matches so far - but the Gunners will be keen to avoid any potential slips.
Image source, Getty ImagesArsenal v Shakhtar Donetsk (20:00 BST)
Arsenal boss Mikel Arteta has called on his side to use the "pain" of their first defeat in six months as motivation for their Champions League meeting with Shakhtar Donetsk.
The Gunners slipped to third in the Premier League after they were beaten 2-0 at Bournemouth following William Saliba's first-half sending off.
Arteta says he wants his players to quickly "move on" after the loss.
"You have a defeat, that's part of the game, it happens in very specific conditions as well," he said.
"Let's move on, take that pain we still have in the tummy and use it for tomorrow night.
"It puts a bit of perspective into the situation. Obviously we want to win in any context. The reality is that we have made that context very difficult for ourselves.
"It was very difficult already with the amount of players that we had out and the schedule and the games that we had to play, but that's the reality.
"For that game we didn't get away with it. We could have done and it could have been a very different narrative, but the reality is we didn't. Another context is that we have lost one game in six months. Now we have to win again."
Image source, Getty ImagesAston Villa v Bologna (20:00 BST)
Bologna have 21-year-old winger Samuel Iling-Junior, who is on loan from Aston Villa, on the substitutes bench at Villa Park.
Former Nottingham Forest midfielder Remo Freuler is in the starting XI.
Bologna XI: Skorupski, Posch, Beukema, Lucumi, Lykogiannis, Freuler, Fabbian, Urbanski, Orsolini, Dallinga, Ndoye.
Subs: Bagnolini, Ravaglia, Holm, Moro, Castro, Iling-Junior, Casale, Corazza, Pobega, Odgaard, Miranda.
Aston Villa v Bologna (20:00 BST)
Image source, Getty ImagesUnai Emery wants Aston Villa to "break barriers" and become regular contenders for silverware as they prepare to take on Bologna in the Champions League on Tuesday.
Emery has guided Villa from the bottom half of the Premier League to the Champions League since taking over as head coach just two years ago.
They have made their best start to a league season since 1998 and have won both of their Champions League games so far, including a 1-0 win over Bayern Munich.
"I don't want to waste my time here, that is my message," said the former Arsenal boss.
"We want to achieve the objectives and one of them is to play in the Champions League. It is not about playing there only because of some circumstances - I want us to stay there for a long time.
"You have to be resilient. We want to be strong in the idea in our mind and create a strong mentality to always break barriers."
Arsenal v Shakhtar Donetsk (20:00 BST)
Alex Howell
BBC football news reporter at the Emirates Stadium
Mikel Arteta is still without Bukayo Saka and Martin Odegaard. Arteta said they'd check on Timber but he is not fit enough to be included either.
Arsenal XI: Raya, White, Saliba, Gabriel, Calafiori, Martinelli, Rice, Partey, Trossard, Jesus, Havertz.
Shakhtar Donetsk XI: Riznyk, Konoplia, Bondar, Matviyenko, Pedro Henrique, Zubkov, Bondarenko, Kryskiv, Eguinaldo, Sudakov, Sikan
Aston Villa v Bologna (20:00 BST)
Unai Amery makes four changes to the Aston Villa side that started the 3-1 win at Fulham on Saturday.
Ezri Konsa, John McGinn, Jhon Duran and Ian Maatsen come into the side with Lucas Digne, Matty Cash, Jacob Ramsey and Ollie Watkins dropping to the substitutes bench.
Aston Villa XI: Martínez, Konsa, Diego Carlos, Torres, Maatsen, Onana, Tielemans, McGinn, Rogers, Bailey, Duran.
Subs: Olsen, Cash, Mings, Barkley, Buendia, Watkins, Digne, Philogene-Bidace, Nedeljkovic, Bogarde, Ramsey, Kamara.
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The big team news from Emirates Stadium is that Bukayo Saka is not fit enough to feature in Mikel Arteta's squad.
And the news from Villa Park is that Jhon Duran is super-sub no more as he comes in for Ollie Watkins.
Full team news to come.
HT: Monaco 2-1 Red Star Belgrade
Image source, Getty ImagesMonaco are top of the as-it-stands table thanks to their 2-1 lead over Red Star Belgrade at half-time in their 17:45 BST game.
Ex-Liverpool forward Takumi Minamino beat the offside trap to put his side ahead after 20 minutes.
Cherif Ndiaye levelled things up from the spot seven minutes later, but deep into first-half stoppage time forward Breel Embolo restored Monaco's lead.
Arsenal v Shakhtar Donetsk (20:00 BST)
BBC Radio 5 Live
BBC Radio 5 Live has full coverage of Arsenal's Champions League match against Shakhtar Donestk this evening.
Build up with former Gunners forward Theo Walcott begins at 19:00 BST, with Ian Dennis and former Premier League striker Chris Sutton bringing you full commentary from Emirates Stadium at 20:00 BST.
Here's how things stood in the top half of the rather large Champions League group before a ball was kicked this evening.
Borussia Dortmund sit top with two wins in two and a goal difference of nine. Liverpool and Aston Villa have also won both of their matches so far while Manchester City and Arsenal sit a bit further back with a win and a draw.
And here's how things are looking in the bottom half of the table...
HT: AC Milan 1-0 Club Brugge
Image source, ReutersTwo games already under way on the continent with AC Milan taking on Club Brugge in one of two early kick-offs.
A classic half of two halves in the San Siro where Milan were dreadful for 20 minutes and could easily have been two or three down without the goalkeeping of magic Mike Maignan.
But Christian Pulisic then fluked a goal direct from a corner and the VAR then suggested that a yellow card for Brugge midfielder Raphael Onyedika was upgraded to red.
Milan a goal and a man up at the interval.
It was a huge European scalp for Aston Villa in their last Champions League match as Jhon Duran came off the bench again to give his side a magnificent 1-0 victory in their second group match.
Meanwhile, Arsenal beat Paris St-Germain 2-0 to get their campaign off the mark after a 0-0 stalemate in their opening game.
Can they keep the momentum?
All kick-offs are 20:00 BST unless otherwise stated
Hello!
A jam packed schedule this evening in the Champions League:
Big wins for both Arsenal and Aston Villa last time out in the Champions League...
Image source, Getty Images
Image source, Getty ImagesCan they keep up the momentum?
| Position | Team | Played | Won | Drawn | Lost | Goals For | Goals Against | Goal Difference | Points | Form, Last 6 games, Oldest first |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 3 | 0 | 0 | 6 | 0 | 6 | 9 |
| |
| 2 | 3 | 2 | 1 | 0 | 9 | 4 | 5 | 7 |
| |
| 3 | Sporting CP | 3 | 2 | 1 | 0 | 5 | 1 | 4 | 7 |
|
| 4 | 3 | 2 | 1 | 0 | 3 | 0 | 3 | 7 |
| |
| 5 | 3 | 2 | 0 | 1 | 12 | 6 | 6 | 6 |
| |
| 6 | Brest | 2 | 2 | 0 | 0 | 6 | 1 | 5 | 6 |
|
| 7 | Benfica | 2 | 2 | 0 | 0 | 6 | 1 | 5 | 6 |
|
| 8 | 2 | 2 | 0 | 0 | 5 | 0 | 5 | 6 |
| |
| 9 | 3 | 2 | 0 | 1 | 8 | 4 | 4 | 6 |
| |
| 10 | 2 | 2 | 0 | 0 | 5 | 1 | 4 | 6 |
| |
| 11 | 3 | 2 | 0 | 1 | 6 | 4 | 2 | 6 |
| |
| 12 | 2 | 1 | 1 | 0 | 4 | 0 | 4 | 4 |
| |
| 13 | 2 | 1 | 1 | 0 | 4 | 0 | 4 | 4 |
| |
| 14 | Sparta Prague | 2 | 1 | 1 | 0 | 4 | 1 | 3 | 4 |
|
| 15 | 2 | 1 | 1 | 0 | 3 | 0 | 3 | 4 |
| |
| 16 | Stuttgart | 3 | 1 | 1 | 1 | 3 | 4 | -1 | 4 |
|
| 17 | 3 | 1 | 1 | 1 | 2 | 3 | -1 | 4 |
| |
| 18 | 2 | 1 | 0 | 1 | 9 | 3 | 6 | 3 |
| |
| 19 | 2 | 1 | 0 | 1 | 6 | 2 | 4 | 3 |
| |
| 20 | Girona | 3 | 1 | 0 | 2 | 4 | 4 | 0 | 3 |
|
| 21 | 3 | 1 | 0 | 2 | 4 | 5 | -1 | 3 |
| |
| 22 | 2 | 1 | 0 | 1 | 1 | 2 | -1 | 3 |
| |
| 23 | 2 | 1 | 0 | 1 | 6 | 8 | -2 | 3 |
| |
| 24 | Feyenoord | 2 | 1 | 0 | 1 | 3 | 6 | -3 | 3 |
|
| 25 | 2 | 1 | 0 | 1 | 2 | 5 | -3 | 3 |
| |
| 26 | Club Brugge | 3 | 1 | 0 | 2 | 2 | 6 | -4 | 3 |
|
| 27 | PSV | 3 | 0 | 2 | 1 | 3 | 5 | -2 | 2 |
|
| 28 | Bologna | 3 | 0 | 1 | 2 | 0 | 4 | -4 | 1 |
|
| 29 | Shakhtar Donetsk | 3 | 0 | 1 | 2 | 0 | 4 | -4 | 1 |
|
| 30 | Dinamo Zagreb | 2 | 0 | 1 | 1 | 4 | 11 | -7 | 1 |
|
| 31 | 2 | 0 | 0 | 2 | 3 | 5 | -2 | 0 |
| |
| 32 | Sturm Graz | 3 | 0 | 0 | 3 | 1 | 5 | -4 | 0 |
|
| 33 | Red Bull Salzburg | 2 | 0 | 0 | 2 | 0 | 7 | -7 | 0 |
|
| 34 | Young Boys | 2 | 0 | 0 | 2 | 0 | 8 | -8 | 0 |
|
| 35 | Red Star Belgrade | 3 | 0 | 0 | 3 | 2 | 11 | -9 | 0 |
|
| 36 | Slovan Bratislava | 3 | 0 | 0 | 3 | 1 | 11 | -10 | 0 |
|
