Follow build up & live actions from nine matches including Arsenal v Kairat, Liverpool v Qarabağ, Manchester City v Galatasaray, Napoli v Chelsea and Paris Saint-Germain v Newcastle.
Joe Willock stepped up as spirited Newcastle United came from behind to draw against holders Paris St-Germain in the Champions League.
Two second-half goals from Joao Pedro see Chelsea come from behind to knock Napoli out of the Champions League and finish in the top eight.
The invisible stuff makes up about 85 percent of all matter in the universe, but researchers know little about it ...