Arsenal are returning to form after flopping in their opening two matches of the season, losing to Liverpool and then drawing with Leicester, but have won two successive games since.
The Gunners start their 19th consecutive season in the Champions League with a trip to play a team they have not faced since the 1993-94 Cup Winners Cup semi-final.
So here, Sportsmail gives you an 'all you need to know' about the clash at Parc des Princes...
Team News
Paris Saint-Germain
PSG could be boosted by the return of captain Thiago Silva and full-back Serge Aurier.