Should Bailey have been sent off for foul on Salah; Wolves get lucky

Video Assistant Referee causes controversy every week in the Premier League .

After each weekend we take a look at the major incidents, to examine and explain the process.

In this week 's VAR Review : Should Aston Villa have been reduced to 10 men against Liverpool ? Why Southampton have every right to feel hard done by in their defeat at Wolverhampton Wanderers ? And how semi-automated offside technology has hit issues in LaLiga .

Southampton thought they had equalised in the 12th minute when Ryan Manning powered a shot into the net.

The goal was disallowed for a foul on Nélson Semedo , but referee Thomas Bramall allowed the goal.

Southampton claimed there had been two fouls in the buildup, by Santiago Bueno and Craig Dawson on Mateus Fernandes.

The Premier League's Key Match Incidents ( KMI) Panel hasn't logged these as errors by the video assistant.

Emile Smith Rowe thought he'd scored his second goal of the game in the 52nd minute, but the VAR had to check for a possible offside.

Robert Lewandowski thought he had given Barcelona the lead at Real Sociedad in the 13th minute, only for the goal to be ruled out by the technology using SAOT.

The flaws of SAOT, and its reliability in correctly identifying body positions of individual players, became apparent in LaLiga on Sunday .