Video assistant referees were once again the subject of controversy on Wednesday in Switzerland's Nations League semi-final clash with Portugal.
Referee Felix Brych was at the centre of a major decision during the game in Porto, as VAR wiped out a Portugal penalty by deeming a foul on Switzerland seconds earlier had warranted a spot kick.
Down a goal in the second half, Switzerland had an appeal for a penalty when Nelson Semedo dragged down Steven Zuber in the penalty area, only for the referee to call for play to continue.