Jordan Pefok during the Concacaf Nations League in June.  (Isaiah J. Downing-USA TODAY Sports)

Jordan Pefok couldn’t time it any better.

With only seconds remaining deep into stoppage time, the U.S. men’s national team striker struck for his first UEFA Champions League goal, the game-winner, to lift Young Boys over Manchester United in a 2-1 upset in its competition opener Tuesday night.

Pefok scored in the fifth minute of injury time for the Swiss side at Wankdorf Stadium.

Cristiano Ronaldo connected for the game’s first goal – his third in two matches in the 13th minute.

United right back Aaron Wan-Bissaka was awarded a red card in the 35th minute after tackling midfielder Christopher Martins, leaving his side undermanned and opening the door to an upset from the Young Boys.

Young Boys midfielder Nicolas Ngamaleu equalized in the 66th minute before Pefok provided his heroics, scoring from 12 yards.

Pefok was a member of the USMNT during its first round of World Cup qualifiers earlier this month, but did not score.

After Pefok’s shot hit the back of the net, his teammates – on the field and the bench – raced after the forward in celebration.