Major League Soccer and the Professional Referee Organization (PRO) today announced that live, in-game testing of video assistance for referees is being conducted during select MLS preseason matches. In compliance with the International Football Association Board (IFAB), the universal decision-making body for the Laws of the Game, Video Assistant Referee (VAR) testing will use video technology to help referees reduce clear errors in four game-changing situations -- goals, penalty decisions, direct red card incidents, and cases of mistaken identity.