The roster includes one player from the 2022 World Cup team (right back Shaq Moore) and two national team regulars (center back Miles Robinson and defender James Sands).
Only five call-ups have appeared in more than four U.S. matches. Thirteen are age-eligible for this summer’s Olympics, which is an under-23 tournament, with three overage exceptions.
“This is an opportunity to identify and work with the next generation of players who have the potential to make an impact on our program,” Berhalter said in a statement. “We appreciate the support from MLS and all their clubs so that we can utilize this platform.