Video Assistant Referee causes controversy every week in the Premier League, but how are decisions made, and are they correct?
After each weekend we take a look at the major incidents, to examine and explain the process both in terms of VAR protocol and the Laws of the Game.
In this week's VAR Review: Why Jurriën Timber's challenge differed from Curtis Jones' red card at Tottenham Hotspur last season. Plus, why Crystal Palace's onside goal could be offside in a few weeks, and Aston Villa's slice of luck against Everton.