Mbappe picked up the pass on the right wing and curled a precise cross into the box for Angel Di Maria to find the back of the net.
When the former Monaco striker received the pass clearly in an offside position, which wasn't seen by the linesman. PSG took the lead when they needed it most.
L'ouverture du score de @AngeI_DiMaria contre le @losclive !
— PSG Goals (@PSG_goals) 9 December 2017
#PSGLOSC (1-0) @Ligue1Conforama - 09/12/17 pic.twitter.com/VDjOaluBIe