Bedoya told El Tiempo newspaper: "We are worried about the case of a referee in a recent match of the semi-final group stage. We'd been previously warned about irregularities in his job in that match and those irregularities occurred. We are investigating. "We are investigating whether a referee's decision was not a simple human mistake. The mistake by the referee had a bearing on the final score." Read more here. Semana International delivers news about Colombia in English. Find more in our home.