Manchester United manager Jose Mourinho issues instructions on the touchline as his team took on Young Boys in the Champions League on Tuesday night [Courtesy]

Manchester United manager Jose Mourinho boasted about his Champions League record after Marouane Fellaini’s injury time winner fired his side into the last 16 with a 1-0 win over Young Boys at Old Trafford.

The three-time European champions sealed their place in the knockout stages with a slice of fortune when Fellaini controlled the ball with his hand before firing into the far corner, provoking Mourinho to throw a box of water bottles to the ground in a mixture of joy and relief.

“For some of my lovers, for those who like stats, 14 seasons in the Champions League, 14 times qualify through the group phases,” said Mourinho on his personal record as boss of Porto, Chelsea and Real Madrid as well as United.

“Never one of my teams stays behind the group phase. The season I didn’t play Champions League, I won the Europa League.”

But there was little for Mourinho to brag about from another laboured performance as United were on the verge of failing to score for a third consecutive European home game for the first time ever.

“The most important thing is to qualify,” said Mourinho, who has had to withstand a barrage of criticism this season for United’s poor results and insipid attacking football.

Mourinho was frustrated and relieved at the same time after Fellaini's late strike [Courtesy]

In keeping with United’s struggles under Mourinho, it could have been even worse but for the brilliance of goalkeeper David de Gea, who produced a stunning save from Ulisses Garcia’s deflected effort to deny Young Boys midway through the second-half.

“From my position, David’s save -- only one save in the whole game -- but it looks a phenomenal save,” said Mourinho.

“A save that the best goalkeeper in the world does and gives his team the possibility to win the match.”

Mourinho made the bold decision to leave Paul Pogba and Romelu Lukaku on the bench and Alexis Sanchez out of his squad as his made six changes from a drab goalless draw with Crystal Palace on Saturday.

Marcus Rashford was given his chance to start as centre-forward, but Mourinho was less than impressed with the 21-year-old just five minutes in when he dinked his finish over the bar with just goalkeeper David von Ballmoos to beat.

“This is the type of game where if you score in the first minute normally you go for a different kind of performance, but it is still very difficult for us to score,” responded Mourinho when asked about his exasperated reaction when Rashford missed.

“If I saw my manager react like that, I would be absolutely livid!” Said former England striker Gary Lineker of Mourinho’s response.