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Live updates
19:16 GMT - GOAL! Slavia Prague 0-3 Arsenal: Another Declan Rice cross and another goal from Mikel Merino! Arsenal are making this look all so easy.
19:13 GMT - Arsenal have been in control since taking a two-goal lead with Slavia Prague yet to have a shot on target.
18:54 GMT - GOAL! Slavia Prague 0-2 Arsenal: Seconds after the break and Arsenal double their lead! Leandro Trossard whips the ball in for Mikel Merino to sidefoot into the back of the net.
Timed at 45:35, Merino's strike is the quickest that Arsenal have scored after half time in Champions League history. Ruthless.
18:53 GMT - We're back underway in Prague.
18:48 GMT - The team news has arrived for Liverpool and Tottenham's matches, which you can see below.
Liverpool v Real Madrid
Tottenham v FC Copenhagen
18:38 GMT - In the other early kick-off this evening, Napoli are goalless at half-time against Frankfurt.
18:37 GMT - HALF-TIME! Arsenal go in 1-0 up at the break courtesy of a Bukayo Saka penalty after 32 minutes.
Arsenal are unbeaten across their last 18 Champions League games when scoring the opening goal (W15 D3), since a 2-1 loss to Lens in October 2023.
18:30 GMT - There will be four minutes of time added on at the end of the first half.
18:27 GMT - Arsenal are dominating, and it has been 30 minutes since Slavia Praha last attempted a shot in this game.
18:17 GMT - GOAL! Slavia Prague 0-1 Arsenal: Bukayo Saka fires low beyond the reach of Jakub Markovic and the Gunners lead.
Saka is the first Arsenal player to score in four consecutive Champions League away games.
18:16 GMT - PENALTY! Arsenal having been piling on the pressure over the past 10 minutes and have been awarded a penalty following a VAR review! Lukás Provod sticks up a hand from Declan Rice's corner.
Slavia Prague have conceded two penalties in the Champions League this season, only Union Saint-Gilloise (three) have conceded more.
18:00 GMT - 15 minutes played at the Fortuna Arena and it's an uncomfortable start for the Gunners. Slavia have had four shots to Arsenal's one and have recorded seven touches in the opposition's penalty area compared to the Gunners' two.
17:45 GMT - Referee Əliyar Ağayev blows his whistle and Arsenal get the game underway.
You can listen to live audio commentary of the match by clicking here.
17:40 GMT - We are five minutes away from kick-off.
17:28 GMT - Arsenal are currently third in the Champions League table on nine points from three games and will go top with a win; Slavia Prague are currently 28th with two points.
17:05 GMT - Declan Rice is making his 27th European appearance for Arsenal this evening, as many as namesake Pat Rice made for the Gunners during his career, and returns the venue where he won the Europa Conference League with West Ham.
The 26-year-old is one booking away from a suspension, and will miss their next match against Bayern Munich.
16:55 GMT - There is one other Champions League game kicking-off at 17:45 GMT today, with Serie A champions Napoli against Frankfurt. You can follow that match here.
16:40 GMT - Slavia Prague v Arsenal team news has arrived, and you can see how they line-up below.
Slavia Prague: Jakub Markovic, David Zima, Stepán Chaloupek, Tomás Vlcek, Youssoupha Mbodji, Michal Sadílek, Christos Zafeiris, David Moses, Youssoupha Sanyang, Tomás Chory, Lukás Provod
Arsenal: David Raya, Piero Hincapié, Gabriel Magalhães, William Saliba, Jurriën Timber, Declan Rice, Christian Nørgaard, Ethan Nwaneri, Leandro Trossard, Mikel Merino, Bukayo Saka
16:10 GMT - We have just over two hours until kick-off in the early matches. We'll bring you team news as soon as we have it.
16:00 GMT - Hello and welcome along to a bumper night of action in the Champions League.
There are nine fixtures in Europe's premier competition tonight, including Arsenal at Slavia Prague, Tottenham at home to FC Copenhagen and PSG against Bayern Munich.
But surely all eyes will be on Liverpool as Trent Alexander-Arnold as he makes his highly-anticipated return to Anfield following his summer switch to Real Madrid.
Stay with us throughout the night for all the latest updates from across Europe.