The UEFA Champions League returns on Wednesday with Matchday 8 and it has the potential to be a historically chaotic day in terms of results that the sport has ever seen. All 36 teams will be in action as 17 games will take place simultaneously at 3 p.

The UEFA Champions League group stage, in the first year of a new format, concludes Wednesday. Here's what to know, including how to watch.

All 36 clubs in this year's Champions League will kick off their final league fixture at 8pm in what promises to be a night to remember

Barcelona and Atalanta meet in Catalonia on Wednesday for their final UEFA Champions League game of the league phase. Hansi Flick's men are already guaranteed a top eight finish, but could yet finish top while Gian Piero Gasperini's side are attempting to confirm a round of 16 place alongside the Blaugrana at Estadi Olimpic Lluis Companys.