The USA is already qualified for the next round of the 2017 CONCACAF Men's U-17 Championship, and El Salvador has already been eliminated. No surprise, therefore, if the US decides to rest a few key players before the Classification Stage gets underway, and if El Salvador gives some time to players who have had a quiet tournament until now.
New York Red Bulls Academy prospect Chris Gloster was subbed out of the USA's last match after taking a bang to the head, so might be among those rested for this game. Whatever combination of players the Americans field, they are expected to be too strong for a Salvadoran side that has conceded nine goals in its first two games in this tournament.
Per US Soccer and livesoccertv.com, here's where to expect to find the game: