Jorge Almirón, head coach of Colo-Colo, was expelled for the fourth time this year during a match against Huachipato, with the referee's report citing specific gestures as the reason for his dismissal. Despite this, Almirón received only a minimal sanction. His recent expulsions have sparked theories suggesting a lack of commitment to Colo-Colo and possible hidden motives behind his conduct. In league action, Cobresal defeated Universidad de Chile (La U) despite playing with ten men for half an hour and facing a penalty against them in the 98th minute. This loss has diminished Universidad de Chile's chances of winning the Chilean Primera Liga, as reflected in updated title probabilities. The league standings have been shaken, with Coquimbo Unido celebrating the unexpected setback for La U. Controversies have also affected referees, with two officials being suspended for the upcoming weekend and the Arbitration Commission acknowledging an error in a match where Coquimbo Unido defeated Limache. Colo-Colo has made a surprising decision to dismiss Jorge Almirón's coaching staff, citing a series of differences. Additional disputes include a contentious early red card against La Calera in a match versus Huachipato, which ended in a narrow victory for Huachipato due to an own goal. Former player Julio Barroso criticized inconsistent disciplinary criteria in Colo-Colo's sanctions. These events highlight ongoing tensions and controversies within Chilean football's 2025 Primera Liga season.