He started alongside Andrew Carleton, the second-youngest (probably) American ever to play in USL, and soon to be an unusually young player for Atlanta United in MLS.
The match was played in Panama: useful preparation for the 2017 CONCACAF U-17 Championship, which will be held in Panama. That tournament will decide CONCACAF's representatives at the 2017 U-17 World Cup, so it is an important part of this cohort's experience at this level.
Gloster and his teammates won the friendly, 3-1.
FINAL: The U-17 #USMNT defeats Panama 3-1 with goals from Ayomide Akinola (21'), George Acosta (36'), and Andrew Carleton (66').— U.S. Soccer YNT (@ussoccer_ynt) September 27, 2016