Arsenal conceded the fastest goal ever in Champions League history when Edison Cavani scored inside 42 seconds to put PSG ahead at the Parc des Princes stadium.
According to Opta sports the goal was the fastest in Champions League history.
42 – Edinson Cavani's strike is the earliest goal Arsenal have conceded in Champions League history (42 seconds). Stunned.
— OptaJoe (@OptaJoe) September 13, 2016
Cavani could have made matters worse but missed an open goal before air-balling another golden goal scoring opportunity to double the home sides lead.
PSG went into the half-time break with a 1-0 lead and the Gunners can count themselves quite fortunate to be down just a single goal.
Arsenal boss Arsene Wenger made a controversial decision in giving David Ospina a starting role in goal ahead of Petr Cech.
Another surprise call by Wenger was to start with Alexis Sanchez upfront ahead of Olivier Giroud and summer signing Lucas. Wenger did however, start star playmaker Mesut Ozil as well as Santi Cazorla.
In the other Group A game Bulgarian giants Ludagorets lead 1-0 against Switzerland based Basel at half-time.
Follow Emre Sarigul @Turkish_Futbol