Coutinho's goal on the stroke of half time ensured there would be no hope for United.
United did get an early penalty to give themselves a dream, but the little magician ended all of that 13 minutes later with a wonderful solo goal that saw David De Gea sink to his knees.
Liverpool go into the Quarter Finals of the Europa League.
Coutinho's killer blow
UEFA Europa League R16 2nd leg HIGHLIGHTS + REPORTManchester United 1-1 Liverpool FC | Liverpool wins 3-1 on aggregatePhilippe Coutinho showed off all his individual skills to score this away goal for Liverpool at Old Trafford to effectively end Manchester United's hopes of reaching the last eight of the UEFA Europa League.Posted by beIN SPORTS Australia on Thursday, 17 March 2016
The draw for the Quarter Finals is at 11am on Friday morning