Manchester United have sealed their passage through to the Champions League last-16 - but they weren't very convincing in doing so.The Red Devils qualified through their group after Marouane Fellaini’s injury-time goal sealed a 1-0 victory against Young Boys at Old Trafford.But the 90 minutes before the opener were nothing short of terrible.Against a fairly average Swiss side, Jose Mourinho’s men created very little until Fellaini turned and finished inside the box.It was more relief than anything else inside the Theatre of Dreams but Mourinho’s reaction got everyone talking.He picked up a crate of water bottles before launching them into the ground.It was a celebration full of anger.

While many may have pleased to see such passion from the Portuguese boss, club legend Rio Ferdinand wasn’t too impressed.

“All eyes on me, that is,” Ferdinand said on BT Sport after the match.

“We just scored a goal but we’re all talking about Jose Mourinho’s reaction.”

When asked about his celebration, Mourinho insisted that it was purely “relief.”

"Relief," he said, according to Fox Sports.

"Frustration before that and relief with the goal. I think we didn't play for that, we didn't play for 0-0. We didn't play to be in trouble until the last minute, so frustration.

"I was not unhappy with the players. Not at all."

With Champions League qualification secured, Mourinho and United now need to concentrate on improving their position in the Premier League.

Following their 0-0 draw against Crystal Palace, they now sit seventh and are already 14 points behind Manchester City.

Perhaps more relevant is the fact they're seven points behind Chelsea, who occupy the fourth and final Champions League qualification slot.