FedEx Field in Landover, Md., played the wrong national anthem for El Salvador before a friendly against Argentina on Saturday.
Players reacted with confusion and some removed their hands from their hearts as they realized it was not the correct anthem. The crowd could also be heard appearing to boo during the song.
This is the correct national anthem of El Salvador:
Argentina won the match, 2-0, on an own goal and a goal by Federico Mancuello.
- Molly Geary