New Delhi, Sept. 10 -- Paris Saint-Germain began their defence of the UEFA Champions League title in emphatic fashion, while Barcelona, Liverpool and Arsenal also opened their campaigns with victories as Matchday 1 got underway with six fixtures on Wednesday (local time).

Defending champions PSG produced the biggest win of the night, thrashing Slovan Bratislava 6-1 as Ferran Torres marked his first Champions League appearance for the French club with a hat-trick, according to UEFA.com.

Ousmane Dembele opened the scoring after Nuno Mendes struck the woodwork and later added another, before Torres took centre stage with three goals. Suleiman Camara pulled one back for Slovan, but Fabian Ruiz restored PSG's five-goal advantage to complete ...