Cristiano Ronaldo put the Red Devils in the driving seat with an early goal, benefitting from a well-executed assist from compatriot Bruno Fernandes.
Aaron Wan Bissaka saw a straight red card before halftime which hindered United’s momentum.
Young Boys went all out for the equaliser and they got one when Ngameleu found the nets in the 66th minute.
While the match was poised for a draw, the hosts snatched a late winner in the injury time through Siebatcheu after Jesse Lingard‘s huge blunder.
Here are the three talking points from United’s shocking defeat.
Ronaldo gets his first Champions League goal for United
Cristiano Ronaldo continued the scoring run that he had in his debut against Newcastle United at the weekend by finding the scoresheet tonight.
It marked the first goal for the Portuguese in the Champions League this season while he remains the top scorer in the competition’s history.
The 36-year-old’s signing is proving to be a coup for the Red Devils, who are looking to end their trophy drought under manager Ole Gunnar Solskjaer.
Wan Bissaka’s red card changed the scenario of the game
United were well in the driver seat after getting an early lead but their momentum was disrupted when Aaron Wan Bissaka saw a red card for his clumsy challenge on Martins Pereira.
Young Boys made a meal of the situation and constantly pushed United on the back foot throughout the second half. It’s how they managed to get two goals.
For all the United fans who were expecting an entertaining game similar to the one against the Magpies last week, disappointment could be the perfect word to describe what they must be feeling now.
Young Boys deserved the win for their efforts
The Swiss champions showed their intentions as soon as Wan Bissaka saw the red and they grew in confidence as the game progressed on.
While sensing that United would not take any risks by moving forward, David Wagner’s side created more dangerous chances and had more shots at goal, which eventually paid off.
Players like Ngameleu, Garcia and Meschak Elia worked their hearts out to secure a memorable win against the Premier League giants.
Lingard’s terrible back pass led to Young Boys’ winner
Jesse Lingard, who was on target against Newcastle United, replaced goal-scorer Ronaldo in the final quarter, and the reason might be Ole Gunnar Solskjaer wanting the Portuguese to remain fit for this weekend’s game against West Ham United.
However, the English playmaker ended up having a forgetful night, as he played a terrible back pass to David De Gea in the final minute of the extra-time, allowing Siebatcheu to pounce on it.