USA's Tim Weah shown red card in loss to Panama at Copa América - ESPN

ATLANTA — United States men's national team forward Tim Weah was sent off in the 18th minute of his team's2-1 Copa América group-stage loss to Panama on Thursday at Mercedes-Benz Stadium.

Weah extended his hand and struck Panama defender Roderick Miller in the back of his head in an off-ball incident. Weah was initially shown a yellow card, but it was changed to a red card by center official Iván Barton after video review.

Folarin Balogun scored for the USMNT four minutes later, but Panama's César Blackman equalized four minutes after that. José Fajardo then scored an 83rd-minute winner for Panama to deal major blow to the United States' hopes of making it through to the quarterfinals.

The U.S. will now likely have to beat Uruguay in its group-stage finale on Monday to avoid elimination.

Weah's ejection was only the second of his career for club or country — his first came with Lille in 2022 — and leaves him ineligible to play in the group-stage finale against Uruguay on Monday.

The red card was also the second-fastest from the start of the game by a USMNT player over the last 40 years and the earliest in a competitive match in that span.

Jimmy Conrad was sent off 17 minutes into a match against Honduras in a 2010 friendly.

The U.S. was dealt a further blow at half-time, with goalkeeper Matt Turner substituted and replaced by Ethan Horvath after receiving treatment for several minutes in the first half following a collision with Panama's César Blackman.

Panama's Adalberto Carrasquilla was also sent off in the 88th minute in a heated finish to the match.

Information from ESPN Stats & Information contributed to this report.