Argentina had many scoring opportunities in the first half, but aside from Messi's goal, three others were called back because players were ruled offsides.
A player is considered offside if they are nearer to the opponent's goal line than both the ball and the second last opponent when the ball is played to them.
We're actually excited to see how this will play out in Qatar, because, honestly, fans around the world are just sick to death of how long it takes VAR to detect offside calls.