Sitting pretty at 3-0 up from the first leg, where Zlatan Ibrahimovic secured possibly the most fortunate hat-trick of all time, it was somewhat of a surprise to see how strong the side Mourinho put out for the second leg was.
Jose was taking no chances as he named the likes of Mata, Pogba, Zlatan, and Mkhitaryan in the starting lineup, and it was the Armenian who made the early breakthrough which well and truly ended the tie as a contest.
Mkhitaryan has been in irresistible form of late, popping up with goals and assists with regularity and style, and it was a typically deft touch that put United ahead in France on Wednesday.
After a nice team move, Juan Mata was given too much time and space and put the ball where only his teammate could get it.
Alternative angles for extra deftness:
A very tidy goal.
It also meant that St.Etienne would need five goals unanswered goals to advance, which means that Mourinho can start planning for the last sixteen now, and surely rest a few legs that are expected to play in Sunday's League Cup final against Southampton.