Portland Timbers players celebrated the full-time whistle at the end of their Western Conference semi-final second leg against Seattle Sounders, thinking they’d won on away goals.

Apparently they were unaware of league rules stipulating that the away goals rule doesn’t apply for goals scored in extra time, and the game went to penalties.

Having won the first leg 2-1 at Providence Park, Portland looked set to progress to the final with the score at 1-1 going into stoppage time at the end of 90 minutes.

Seattle then scored to take the game into extra time, in which both teams scored – and clearly some Portland players thought the job was done.

Word quickly spread that spot kicks were imminent, and fortunately for Portland they won the shootout 4-2.