Why was West Ham goal disallowed vs. Arsenal? David Raya incident explained as VAR saves Gunners

Arsenal claimed a potentially crucial 1-0 win at West Ham United on Sunday to take a step closer to the Premier League title.

Leandro Trossard's late winner sealed all three points at the London Stadium and restored the Gunners' five-point lead at the top of the standings. Two wins from their final two games will guarantee them a first top-flight crown in 22 years, regardless of Manchester City's results.

Yet it was nearly very different. Callum Wilson thought he had scored an equaliser deep into second-half stoppage time, which would have been a massive blow to Arsenal's title chase and a huge boost to the Hammers' battle against relegation.

However, after a long VAR review, the officials decided to disallow the goal, and Arsenal held on for the victory.

Here's what happened.

Why was West Ham goal disallowed vs. Arsenal?

Wilson's goal was disallowed after the officials decided there had been a foul on Arsenal keeper David Raya in the build-up.

During something of a penalty-box melee at a West Ham corner, Raya managed only to push the ball away while under pressure. It was cleared as far as Wilson, whose shot bounced through the crowded box and in, with Declan Rice unable to clear the ball before it crossed the line.

Arsenal immediately protested, insisting there was a foul on Raya. They felt that West Ham striker Pablo had committed an infringement as he had his left arm across Raya's chest, which seemed to prevent the keeper from jumping cleanly for the ball. It also appeared that Raya's jersey was being pulled.

VAR Darren England recommended an on-field review. Referee Chris Kavanagh watched the footage and agreed with England's view that a foul had been committed, so the goal was disallowed and a free-kick awarded to Arsenal.

This is a developing story and will be updated.