The U.S. Under-17 Men’s National Team is off to Mexico this week, for a trio of games against high-level opposition.

The Four Nations Tournament pits the United States against Argentina, Mexico and Chile from October 4-7. For a variety of reasons, the U.S. roster is missing several regular names (more on that below) not to mention a permanent head coach.

Below are a few things to keep an eye on as the team takes the field.