The 19-year-old forward sustained the injury during training with the U.S. Women’s National Team (USWNT) in Los Angeles on Tuesday. The severity of the injury and expected recovery timeline have not been disclosed.

Thompson’s absence is a significant blow to the USWNT, which is aiming to win its fifth Gold Cup title. The forward has quickly become a key player for the team, scoring five goals in her first nine appearances.

“Alyssa is a talented and important player for us,” said USWNT head coach Vlatko Andonovski. “We’re disappointed that she won’t be able to compete in the Gold Cup, but we wish her a speedy recovery.”

The W Gold Cup will take place from July 4 to 18 in Mexico. The USWNT is in Group E alongside Canada, Haiti, and Jamaica. The team’s first match is scheduled for Monday, July 4, against Haiti.

Thompson will undergo further evaluation and treatment for her injury. It is unclear whether she will be able to participate in the USWNT’s upcoming friendlies against Mexico and Japan in September.

The USWNT will hope that Thompson recovers quickly from her injury. Her absence will be felt as the team looks to defend its Gold Cup title and prepare for the 2023 FIFA Women’s World Cup.