Matteo Cancellieri scored a late winner as newly promoted Parma stunned AC Milan in Serie A.
Pontus Almqvist's pinpoint ball into the box found fellow second-half substitute Cancellieri, who finished into the bottom corner.
Dennis Man had opened the scoring for the hosts after just two minutes, firing high into the roof of the net from Emanuele Valeri's low ball across the box.
The goal meant Man is the first Parma player to score in his club's opening two league matches of a Serie A season since Sebastian Giovinco in September 2011.
Christian Pulisic equalised after the break, getting on the end of Rafael Leao's cross and converting from close range.
But Milan were caught out late on against the run of play and, despite dominating most of the second half, the visitors came away empty handed.
This is the first time the Rossoneri have failed to win either of their first two games of a Serie A campaign since 2011-12.
Meanwhile, defending champions Inter beat Lecce later on Saturday thanks to Matteo Darmian's fifth-minute header and a Hakan Calhanoglu penalty.
Simone Inzaghi's side have now won their opening Serie A home game for six successive campaigns.
