AC Milan came from behind to beat Paris Saint-Germain to leave UEFA Champions League Group F wide open.
PSG looked well set to cement their place at the top of the table when Milan Skriniar gave them the lead, but goals from Rafael Leao and Olivier Giroud turned the contest on its head.
It did not look likely when Skriniar stooped low to nod home a flick-on from Marquinhos on nine minutes.
Milan responded superbly, with Leao acrobatically volleying home after Gianluigi Donnarumma – who had been given a hot reception by the fans of his former club – had beaten away a shot from Giroud.
Kylian Mbappe wasted a big chance for PSG when stabbing wide after racing clear, while Ousmane Dembele saw a shot crash off the bar.
Milan snatched the win on 50 minutes when Giroud rose high to head home a superb cross from Theo Hernandez.
The win lifts Milan to five points, one behind PSG. Borussia Dortmund are the group leaders after beating Newcastle earlier in the day.