The English Premier League has often been decided by the finest margin, a missed goal there, a dropped point here. Only one point separated the champion Manchester City last year from their runner-up Liverpool and the team of Jurgen Klopp is now learning, languishing mid-table, an opportunity to win the title doesn’t come around often.

Thus, when a human error as acknowledged by the authority responsible for Premier League referees, let Brentford’s equalizer for standing in a 1-1 draw with Arsenal, the league leader, it provoked furious as denied the Gunners their important victory.

Mikel Arteta, their manager said that he just looked back and it is offside but he says that they have not explained why it was not allowed. It is frustrating but they might explain later in the week. They haven’t got one.

As Brentford trails by 1-0, Ivan Toney heads in a goal after the ball bobbled around the penalty box from one free kick. The VAR or Video Assistant Referee Lee Mason checked the challenge of Ethan Pinnock on Gabriel during the initial free kick. However, it appeared like they did not use the guidelines laid down by VAR for checking a second incident in the build-up of the goal when Christian Norgaard appeared to be offside.

Arteta continued those certain principles had to be applied in defending and that is done by sticking to the rules. He says that they should inform them beforehand so that they do not hold the line that high. They are always going to have an advantage if they are blocked. A player can’t be blocked when someone is on the offside.

PGMOL, the body responsible for the referees of the Premier League told CNN that Howard Webb, its Chief Refereeing Officer had got in touch with Arsenal to acknowledge and also explain the prominent errors in the VAR process.