What happened: Hall entered as a substitute to score on debut, then added a second goal in his next cap. The debut finish helped close a 3-1 result.
Why it matters: At 18, the immediate production adds another vertical option to the United States attacking pool. The start carries a breakout club season into international play.
By the numbers: Two goals in first two caps; youngest to do so. Age 18 at debut; substitute goal in 3-1 win.
What to watch: Next camp will show whether substitute minutes turn into a starting look. Continued club production will decide if the scoring start extends.