LIVE: Barça on the defensive, Adeyemi hat-trick for Dortmund, Arsenal on top

It’s Tuesday and that can only mean one thing as Champions League teams return to action.

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Shooters: Havertz 20′, Saka 35′

Kai Havertz opened the scoring for the Gunners after heading home a cross into the box.

The hosts then doubled their lead when Bukayo Saka hit a free kick from near the touchline that went past everyone and beat Gianluigi Donnarumma.

Shooters: Gündoğan 8′, Foden 15′

Manchester City soon took the lead when İlkay Gündoğan scored his first goal since returning to the club, his shot from the edge of the penalty area deflecting into the goal.

Phil Foden then doubled City’s lead with a beautiful pass that led to a cross from the right by Jérémy Doku, which was curled in by the England striker.

PSV took the lead after a quarter of an hour after a shot from outside the penalty area by Jerdy Schouten.

Shooters: Çalhanoğlu 11′

Inter took the lead early on when Hakan Çalhanoğlu scored one of his trademark brilliant free kicks that delighted the fans.

Shooters: Can 7′ (PEN), Adeyemi 11′, 29′, 42′; Maeda 9′

Dortmund had a penalty after just five minutes when Celtic stopper Kasper Schmeichel brought down Jamie Gittens in the penalty area.

Emre Can stepped up and took the penalty kick, sending it high into the net.

A few minutes of madness ensued when Daizen Maeda equalized for Celtic and Karim Adeyemi’s shot was deflected just two minutes later to put Dortmind back in front.

The hosts had a two-goal advantage when Adeyemi released the ball with a stunning angled shot that went into the roof of the net.

Things started to go wrong when Dortmund scored another goal from a Serhou Guirassy penalty and Adeyemi’s powerful shot from inside the box completed his first-half hat-trick.

Shooters: Lewandowskiego 8′, Raphinha 34′

Barcelona started the match brilliantly when a beautiful ball from a corner kick from Lamine Yamal allowed Raphinha to take a shot, and when it became clear that the ball was going wide, Robert Lewandowski was on the right track and after cleverly running into the penalty area, he hit the ball into the goal .

The former Leeds striker then progressed from assister to goalscorer, finishing the match after deflecting a shot from Pedri.

There was no hangover from the weekend’s defeat to Osasuna as Iñigo Martínez scored three goals before half-time and Pedri’s free-kick from the touchline was beautifully curled home by Iñigo Martínez.

Shooters: Sima 24′, 70′, Camara 66′, Lage 75′

Brest made it two wins from two in their debut season in Europe, beating Salzburg by a stunning 4-0 scoreline.

Salzburg thought they had taken the lead when Samson Baidoo scored from a corner, but VAR ruled out an offside.

It was then Brest who took the lead in extra time when Andre Sima scored his second goal in two Champions League appearances, using enormous strength to hold off a defender and slot the ball past goalkeeper Janis Blaswich.

The French team were effective on counter-attacks throughout the evening and doubled their lead when the keeper’s long ball found its way into the box and Mahdi Camara was able to take advantage of shaky defense to finish well.

Just four minutes later, Brest had a third goal when the unmarked Sima struck from a deflected shot, taking advantage of more defensive chaos from Salzburg in the penalty area.

15 minutes before the end, the Champions League debutants scored their fourth goal when Mathias Pereira Lage hit another cross from the right from the edge of the penalty area.

Shooters: Millota 7′; Kairinen 32′

Stuttgart played its first Champions League match at home in 14 years, but drew 1-1 with Sparta Prague.

Enzo Millot opened the scoring for the hosts, rising highest to nod in a dangerous cross from the left.

However, the Czech champions were soon back on level terms when Kaan Kairinen scored a stunning free-kick into the top corner.

That’s when there were no goals and Prague stopped playing, and their excellent defensive play earned them a point after a fierce fight.

Another series of exciting European clashes take place on Wednesday, with Aston Villa hosting Bayern Munich, Real Madrid taking on Lille, Liverpool taking on Bologna and Juventus away at Leipzig.