SEOUL, South Korea (AP) — A South Korean boxer who lost consciousness after winning his WBO intercontinental flyweight bout was in a coma with a brain injury.

Choi Yoi-sam was rushed to a hospital shortly after Tuesday’s fight against Indonesian challenger Heri Amol. The 33-year-old South Korean was knocked down in the final round of the 12-round fight, but it was not known whether that caused him to pass out.

“Choi’s condition is very bad. He is in a coma," Lee Mi-jong, a spokesman at Soonchunhyang University Hospital in Seoul, said.

The boxer had surgery Tuesday to stop the swelling of his brain, he said.

“Even if he survives, it’ll be difficult for him to continue his boxing career,” Lee said.

CHICAGO (AP) — The United States will open its Olympic qualifying group against Cuba on March 11 at Raymond James Stadium in Tampa, Fla.

Soccer’s North and Central American and Caribbean governing body also said that the United States will face Panama on March 13 and finish Group A play in Tampa against Guatemala on March 15.

In Group B, Mexico, Canada, Guatemala and Haiti will play in Carson, Calif.

The top two teams in each group will advance to the semifinals in Nashville, Tenn., on March 20, and the semifinal winners will represent the region in the 16-nation field in Beijing. The final and third-place game will be in Nashville on March 23.