Jose Mourinho's side had laboured throughout the game against the Swiss champions at Old Trafford and looked set for a second consecutive goalless draw at home until Fellaini's smart finish.
Manchester United's Marouane Fellaini struck a controversial stoppage-time victor to bring blessed relief to Old Trafford after a laboured 1-0 win over Young Boys edged them into the last 16 of the Champions League on Tuesday.
"The most important thing is to qualify and for some of my lovers, and those that like stats, I am 14 seasons in the Champions League and 14 times my teams have qualified through to the group stages", Mourinho told BT Sport. The runaway Swiss Super League leaders have won their last four domestic matches, but the club suffered a 3-1 defeat vs. Valencia in its most recent Champions League match. Mourinho was forced to walk the last half mile and the 55-year-old insists he is prepared to do the same again.
Jose Mourinho told Manchester United's underachieving players to "stay at home" if they can not handle the pressure to perform at Old Trafford. Young Boys are on one. "[Phil] Jones, [Chris] Smalling and [Eric] Bailly are the three [defenders] we have. He has a muscular problem and muscular problem takes time". The Swede will undergo a scan on Tuesday and is expected to be out for around a month.
"I would say if we have him for the Christmas period - where we need, if possible, every player to be available for that hard period until the Newcastle match on January 2 - if we can have Victor available for that period, it will be good". And with that in mind, Jose Mourinho has chosen the starting XI.
"I want the team to start strong, I want the team to have a go immediately and it is a bit frustrating", he said.