Mauricio Pochettino sprinted across the Santa Clara pitch at the final whistle, hurdling advertising hoardings to exchange handshakes and grins with US supporters. His team had just defeated Bosnia and Herzegovina 2-0 to reach the World Cup’s last sixteen, a first knockout-stage victory for the American men since 2002. The Argentine coach’s dash, captured by cameras and recounted in the Spanish-language press, was read across South America as a sign of a deepening bond between a foreign tactician and a host nation daring to dream.

Folarin Balogun had given the US the lead, steering in his third goal of the tournament, before Malik Tillman curled a free-kick past the Bosnian goalkeeper to double the advantage. The contest pivoted, however, in the 64th minute. Referee Raphael Claus, after a VAR review, showed Balogun a straight red card for a studs-up challenge on Tarik Muharemović. The decision forced the co-hosts to defend with ten men for the final half-hour, a test they passed with what Pochettino called “character” and “maturity”.

The dismissal ignited a transatlantic officiating row. North American analysts and former referees argued the VAR intervention itself breached protocol, as slow-motion replays were used to recommend a review for a tackle that, at full speed, had not drawn a card. They pointed to an earlier incident in which Argentina’s Lionel Messi escaped sanction for a similar challenge against Algeria – a non-call that prompted an official Algerian complaint to FIFA. The sense of a double standard, voiced by US midfielder Weston McKennie, resonated with a domestic audience that had tuned in in unprecedented numbers. Fox Sports reported an average 24.4 million viewers, peaking at 31.9 million, making it the most-watched English-language soccer broadcast in American history; combined with Telemundo’s Spanish coverage, the total reached 33.5 million.

Viewed from West Africa, Balogun’s night carried a different resonance. Nigerian outlets noted that the London-born forward of Nigerian descent became only the fourth player ever to score and be sent off in a World Cup knockout match, joining Garrincha, Ronaldinho and Zinedine Zidane. His suspension for the Belgium tie leaves Pochettino without his leading scorer, a void the squad insists it can fill. “We’re a team of 26, not just one,” defender Chris Richards said, a sentiment that will be tested in Seattle.

The result also closed the book on Asia’s record nine-team contingent, all eliminated before the round of 16, while African hopes now rest on the continent’s remaining representatives. For the US, the immediate consequence is a last-sixteen date with Belgium shorn of their talisman, a match that will measure the depth of a squad and the resilience of a nation’s footballing ambition.