Mexico defeated South Africa in its opening match of the FIFA World Cup on Thursday in Mexico City.

The result marks a strong start for the host nation during a tournament that features 48 teams [1]. This victory provides immediate momentum for Mexico as the competition begins a 39-day schedule [1].

While the action on the pitch progressed, diplomatic tensions surfaced regarding the Iran national team. The Iranian squad relocated its training base from Tucson, Arizona, to Tijuana, Mexico, following complications with U.S. visa restrictions [2], [3].

Iran arrived in Tijuana on June 7 [2]. The move of the training base was officially announced on June 8 [3]. The relocation follows claims that U.S. immigration policy restrictions obstructed the team's ability to prepare within the United States [2].

Across the tournament, the United States men's national team is preparing for its own group-stage challenges. An ESPN FC panel previewed the upcoming USMNT match against Paraguay, discussing the tactical outlook for the American side [4].

The 2026 tournament is the first to utilize the expanded 48-team format [1]. This expansion increases the number of matches and the logistical complexity of hosting teams from diverse geopolitical backgrounds, a challenge highlighted by the Iranian visa dispute [2].

Mexico defeated South Africa in its opening match of the FIFA World Cup

The intersection of sports and diplomacy is evident as the expanded World Cup format brings more nations into the U.S. and Mexico. Iran's relocation underscores how national immigration policies can disrupt athletic preparation, potentially creating a precedent for other nations facing similar visa hurdles during the tournament.