Manchester City's unbeaten start under Enzo Maresca ended in emphatic fashion as Paris Saint-Germain ran out 4-2 winners at the Etihad in the Champions League.

The holders were three goals to the good before half-time, and while Erling Haaland's second-half double gave the scoreline a respectable sheen, the damage had long been done.

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First-half collapse

City had actually begun with promise. But that promise was shredded inside 13 minutes when Desire Doue found the bottom corner from the edge of the box. Worse followed almost immediately: Ousmane Dembele doubled the lead 99 seconds later, and by the 32nd minute Vitinha had made it three. The Etihad sat in stunned silence.

Maresca's response was swift and sweeping. Three changes at the break — Matheus Nunes, Ayyoub Bouaddi and Iliman Ndiaye introduced — and the mood lifted.

Enzo Fernandez headed wide before Ndiaye turned provider, crossing for Haaland to halve the deficit after 53 minutes. Game on? Not quite. Nine minutes later Maghnes Akliouche restored the three-goal cushion, pouncing after Gianluigi Donnarumma failed to deal with his initial effort.

City kept coming. Josko Gvardiol had a header cleared off the line, Fernandez struck the woodwork, and Haaland pulled one back from Bouaddi's cross after 75 minutes. The Norwegian then hit the woodwork himself and was denied a hat-trick by Matvey Safonov. At the other end, Donnarumma saved a late penalty from former City forward Ferran Torres — a moment that summed up a chaotic night.

Twenty-seven attempts tells its own story. So does the scoreline.

Haaland makes history

Haaland's double took him to 38 goals in 41 Champions League appearances for City, moving him clear of Sergio Aguero as the club's leading scorer in the competition. A landmark on a night to forget for the team.

The defeat leaves Maresca's side on three points from their opening two Champions League games, following their 2-0 victory at Porto. Ipswich Town visit the Etihad on Saturday.