Inter snatched a 1-0 victory over Arsenal in the headlining act of Wednesday's UEFA Champions League action, handing the English side their first defeat of the competition in the process. The game's lone goal came in first-half stoppage time when Hakan Calhanoglu converted a penalty that was awarded after Arsenal's Mikel Merino was called for a handball.

PSG were pressing Atleti high up the pitch, and a moment's hesitation from Clément Lenglet was punished by Ousmane Dembélé when he stole the ball and fed in Warren Zaïre-Emery, who made no mistake in supplying the finish.

Hakan Çalhanoğlu's penalty proved decisive for Inter against Arsenal, while Barcelona were in free-scoring form, Atleti won late in Paris and Aston Villa's bubble was burst.