Manchester City thrashed Slovan Bratislava 4-0 in the Champions League on Tuesday night.
It is the Premier League champions’ first win in the competition this season.
Ilkay Gündogan, Phil Foden, Erling Haaland and James McAtee all got on the scoresheet.
A second half goal from Victor Boniface was enough to earn Bayer Leverkusen a 1-0 home win over AC Milan in the Champions League on Tuesday.
It gives the German side a perfect start to their campaign while the Italians are still without a point.
Barcelona hammered Young Boys -0. Robert Lewandowski scored twice and Raphinha and Iñigo Martínez added goals for Barcelona, along with an own-goal by Mohamed Camara, in the win against Young Boys.
Arsenal secured their first win in the new Champions League format as they overcame Paris St-Germain at Emirates Stadium.
Mikel Arteta’s side followed an opening draw with Atalanta by taking control with two first-half goals from Kai Havertz’s header and a free-kick from Bukayo Saka that drifted in past PSG goalkeeper Gianluigi Donnarumma.
PSG had their moments, especially when Nuno Mendes and Joao Neves hit the woodwork either side of the break, but the platform for victory was established by a dominant first-half display from Arsenal.
Havertz put them ahead after 20 minutes when he beat Donnarumma to Leandro Trossard’s inviting cross to head home, before the keeper was deceived by Saka’s set-piece from near the touchline as he was unsighted in a packed penalty area.
PSG, stripped of the old superstars such as Kylian Mbappe, Lionel Messi and Neymar, mounted periods of pressure after the break as Arsenal struggled to retain possession, but Arteta felt confident enough to give a debut to Mikel Merino, a £31m signing from Real Sociedad, on another satisfactory night for Arsenal.
