What happened: Folarin Balogun put the United States ahead 1-0 against Bosnia-Herzegovina in the second half of their World Cup Round of 32 match before being shown a red card for a foul. The dismissal left Team USA to finish the game with 10 players. Balogun had scored the opener earlier before the sending-off.

Why it matters: Beyond the immediate disadvantage of playing a man down, the red card carries a one-game suspension, meaning Balogun would sit out the Round of 16 should the United States advance. Losing a striker who had just given the team the lead is a significant blow at the sharpest end of a knockout tournament, forcing a reshuffle up top for any next fixture.

What to watch: Watch whether the United States can protect its lead down to 10 men and secure passage, and whether the federation pursues an appeal of the dismissal ahead of a potential Round of 16 game Balogun would otherwise miss.