Manchester United suffered a stoppage-time 2-1 defeat away to Young Boys after a calamitous defensive mistake in their Champions League opener in Bern on Tuesday with United States forward Jordan Pefok netted the winner.
Cristiano Ronaldo's early goal put United 1-0 ahead before Aaron Wan-Bissaka picked up a 35th-minute red card in Bern on Tuesday.
A stunning curled pass from Bruno Fernandes allowed Ronaldo to tap home at the back post from close range on 13 minutes as the former Juventus forward scored his third goal in two matches since returning to United.