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: Should Brentford 's stoppage-time equaliser against Chelsea have been disallowed? Why was a Tottenham Hotspur goal at West Ham United ruled out? And should Wolverhampton Wanderers have been reduced to 10 men at Newcastle United ?

Brentford 2-2 Chelsea

Possible offside: Ouattara on Carvalho goal

What happened: Brentford scored an equaliser three minutes into stoppage time when Fábio Carvalho guided the ball home after Kristoffer Ajer had flicked on Michael Kayode 's

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