Dortmund scores 7 while Barcelona, Man City and Arsenal all win in Champions League

Karim Adeyemi starred as Borussia Dortmund ran riot against Celtic while Barcelona and Manchester City claimed their first wins in the restructured Champions League on Tuesday.

Adeyemi scored a first-half hat trick as Dortmund routed Celtic 7-1 at home. It was the second big win from a German team in the competition after Bayern Munich's 9-2 bashing of Dinamo Zagreb in the first matchday.

Robert Lewandowski got Barcelona off the mark as the Spanish giant eased to a 5-0 home win over Swiss team Young Boys, while his former teammate İlkay Gündoğan got City off to a 4-0 win at Slovan Bratislava. Erling Haaland scored his 42nd goal in his 41st Champions League game.

City was held 0-0 by Inter Milan in their opening game, while Barca responded to its 2-1 loss at Monaco, the team’s first defeat under new coach Hansi Flick.