What happened: 16-year-old Cavan Sullivan reported for his first senior-team training spell. The group is building toward the Peru friendly with 28 in camp and 11 subs allowed.
Why it matters: A debut would leave him behind only Freddy Adu among the youngest USMNT debutants. His 14 goal contributions this season have accelerated his senior timeline.
By the numbers: Sullivan has three goals in his last two MLS games and 14 goal contributions this season. US camp: 28 players in, up to 22 eligible to play with 11 subs allowed.
What to watch: Watch whether Sullivan makes the matchday squad against Peru and logs his first senior minutes.