Follow the Champions League LIVE all evening here.
Tuesday, October 21st
22:35 CET - Ousmane Dembele has returned from injury in style, scoring just three minutes after coming on for his first match since the start of September.
PSG now lead what has been a chaotic match 6-2.
22:30 CET - Gyokeres gets another! It's like London buses: You wait around for one, and then two come at once!
22:24 CET - The floodgates have opened at the Emirates! Gabriel Martinelli and Viktor Gyokeres have both scored in the space of three minutes to put the Premier League leaders 3-0 up!
The Swedish striker will be delighted to have ended his nine-game goal drought.
22:19 CET - An upset is very much on the cards in the Netherlands, where the Dutch champions now lead the Italian champions 3-1.
22:16 CET - Gabriel breaks the deadlock in North London! Arsenal have scored from a set-piece yet again, with the centre-back heading in a free-kick.
21:54 CET - Perhaps unsurprisingly given it's one between two sides led by somewhat conservative managers, the only goalless match amongst the 21:00 kick-offs is Arsenal vs Atletico Madrid.
The hosts have had more of the ball and more efforts on goal, but only got two on target.
21:48 CET - We've now entered the break in each of the matches, and the most eventful half has undoubtedly come in Leverkusen, where PSG now lead 4-1 thanks to goals from Kvicha Kvaratskhelia and Desire Doue just before the whistle.
21:40 CET - What a turnaround in Eindhoven, where PSV now lead thanks to Ismael Saibari!
Things are equally as eventful in Leverkusen, where PSG now lead 2-1 and both sides have been shown a red card, while Inter have taken the lead against Royale Union SG and Borussia Dortmund are drawing 1-1 with Copenhagen.
21:36 CET - Napoli's lead didn't last long, with PSV levelling things up through an own goal from Alessandro Buongiorno, who turned in an excellent cross from Ivan Perisic.
21:31 CET - Scott McTominay has given Napoli the lead in what has been a close game with PSV, sending in a bullet header.
In Newcastle meanwhile, Anthony Gordon has given Newcastle the lead against Jose Mourinho's Benfica.
21:26 CET - Bayer Leverkusen have missed a huge chance to draw level against the reigning champions, with Lucas Chevalier saving a penalty from Alex Grimaldo.
21:17 CET - Erling Haaland does it again! The Man City man has given his side the lead in Villarreal by scoring in his 12th match in a row and in his ninth on the bounce for his club!
21:07 CET - PSG take an early lead! Willian Pacho has headed in a corner to put them 1-0 in Leverkusen.
21:01 CET - The rest of tonight's action is underway! Who can take a stop towards the knockout stages and who will end up having to play catch-up in the five remaining matchdays? Let's find out!
20:39 CET - That’s full-time in the early fixtures, and Barcelona have absolutely thrashed Olympiacos 6-1, with Fermin Lopez scoring a hat-trick and Marcus Rashford netting twice.
Over in Almaty, Kairat have been held to a goalless draw by 10-man Pafos.
20:23 CET - It's 6-1 in Barcelona, Marcus Rashford has his second, and Olympiacos will be begging this to be over as soon as possible.
And that was another classy finish from Rashford, who is purring, it must be said.
20:20 CET - Make that 5-1! Wow, Barca are on fire here. And it's Fermin Lopez again, who now has three goals!
That's Fermin's first-ever senior hat-trick. A day he'll never forget. Remarkably, he's the first Spaniard to score a hat-trick in the Champions League.
20:17 CET - Marcus Rashford has made it 4-1 to Barca, and it's a clever finish from the Englishman. Surely, that's game over now.
20:11 CET - Lamine Yamal has fired Barcelona into a 3-1 lead from the spot after Marcus Rashford won the penalty for the Catalans. It's looking like a long way back now for Olympiacos, who are down to 10 men.
20:08 CET - Team news is coming in for the seven late games this evening. You can see how Arsenal and Atleti will line up just below, and further down, the starting XIs for Bayer Leverkusen vs PSG.
20:02 CET - Just after scoring, Olympiacos have now lost a man, unfortunately for them. Santiago Hezze is off after receiving a second yellow card.
19:58 CET - Game on in Barcelona with the visitors reducing the deficit through Ayoub El Kaabi's penalty.
19:49 CET - We're now back underway in both Spain and Kazakhstan for the second half!
19:38 CET - Barcelona go into the break two goals to the good against Olympiacos, with Fermin Lopez netting his second of the evening via a curled strike in the box.
Keep track of the second half here!
Meanwhile, in Almaty, Kairat remain level with 10-man Pafos after a competitive opening 45 minutes, in which the hosts are still waiting for their first shot on target.
Follow the second half with Flashscore!
18:57 CET - An early breakthrough for Barcelona! Having returned from injury at the weekend, Fermin Lopez has given Hansi Flick's side the lead this evening with a composed finish from 10 yards.
18:52 CET - Drama in Kazakhstan after just four minutes, as the visitors are reduced to 10 men following a straight red card for Joao Correia. Can Kairat make their numerical advantage count?
18:46 CET - Matchday three of the Champions League is now underway, with play getting started in both Barcelona and Almaty!
Follow Barcelona vs Olympiacos here
Follow Kairat Almaty vs Pafos here
18:00 CET - We're just 45 minutes away from this evening's early kick-offs, as Spanish champions Barcelona host Olympiacos and Pafos travel to Kazakhstan to face Kairat Almaty.
Here are the starting lineups for both matches:
17:45 CET - Hello and welcome to Flashscore's coverage of this week's Champions League action!
The league phase tends to throw up more big games than the group stage of old did, and that's very much evident this week, with numerous heavyweight clashes on the agenda.
One of them is taking place in London tonight, where Arsenal will play host to Atletico Madrid, and you can read our preview of that clash here.
Here's all the action you have to look forward to in the coming days:
