A video has gone viral showing a Chicago Cubs fan slapping a younger fan on the head for not standing during the National Anthem before a game against the Minnesota Twins. The incident occurred amid America's 250th birthday celebrations, a period marked by heightened displays of patriotism, and has sparked online debate about the appropriateness of using physical force to enforce perceived patriotic conduct at sporting events.

The confrontation took place on a Sunday afternoon at a Cubs-Twins game, as the "Jersey Girls" performed "The Star Spangled Banner" before first pitch. Footage shows fans standing for the anthem while one fan reacted physically towards another who remained seated, with the clip subsequently spreading widely across social media.