Mexico already has a busy slate of warm-up matches confirmed as part of their World Cup preparations:
Sept. 6: vs Japan - Oakland Coliseum
Sept. 9: vs South Korea - Geodis Park, Nashville
Oct. 11: vs Colombia - AT&T Stadium, Texas
Oct. 14: vs Ecuador - Estadio Akron, Guadalajara
Nov. 15: vs Uruguay - TSM Estadio Corona, Torreón
Nov. 18: vs Paraguay - Estadio BBVA, Monterrey
If the deal goes through, the clash with Portugal would be the last big test before El Tri officially opens the 2026 FIFA World Cup on June 11 at the Azteca.