U.S. men's national team head coach Gregg Berhalter admitted that he encouraged Efrain Alvarez to join up with Mexico's senior team for upcoming friendlies.
Alvarez, who has represented Mexico at the youth level, was called into the U.S. senior team last fall, but would be unable to play for the USMNT without filing a one-time switch.
He can, however, play for Mexico, who called him in for friendlies against Wales and Costa Rica, with Berhalter advising the 18-year-old to join up with El Tri and form his own opinion of their national team setup.