But what ' s the harm of having a replay when play has already stopped ? I see two different scenarios with replays . 1 . A suspicious call is made when play is going on . Eg . Ref doesn ' t call a foul or an offside and one team keeps moving . In this scenario , you definitely can ' t stop play to check the replays . 2 . A suspicious call is made in a case leading to stoppage in play . for instance , ref stops play for a foul and gives a red card , goal is scored from an offside position . In such cases where the play has already stopped , I see no harm in checking the replays just to confirm that the red is actually a red or that the player was offside . The offside call is obviously an easy one to make , but the red card decision can be difficult sometimes . I definitely think there should be replays for offside goals because that won ' t take more than 15 seconds to confirm . For penalties though , it ' s always hard to tell in many situations so maybe this should just stick with the ref . I definitely think there are cases where video refs would easily solve problems without changing the game too much . But I agree that its disadvantageous to teams in some cases when play doesn ' t stop and its not a magic solution to subjective calls like penalties and fouls .