West Ham manager Sam Allardyce criticised referee Neil Swarbrick's decision to rule out Alex Song's early goal in the match with Arsenal, hinting that the call cost his side the game.

The match finished 2-1 after Arsenal struck twice late on in the first half, thanks to a penalty from Santi Cazorla and goal from Danny Welbeck. Song's goal went in within the first five minutes, but was controversially ruled out because of Hammers players blocking the sight of Arsenal goalkeeper Wojciech Szczesny from offside positions.

According to ​Sky Sports, Allardyce said: “I asked the fourth official why he disallowed it and he said our player was in front of the keeper, so I then said how can you judge that from where the assistant is?

“It had to be the referee who judged that was the case, so having looked at it at half-time both of them are wrong and sadly we have not the goal we deserved.

“If the referee has given it for being in front of his eyeline then he has guessed and guessed wrongly sadly. We would have been 1-0 up and on the basis of our form at home I would have banked on us not losing.

West Ham United v Arsenal - Premier League

“But because that was taken away from us we couldn’t gain that advantage and then fell asleep for five minutes at the end of the first half and ended up bizarrely 2-0 down.”

Allardyce was also disappointed his team weren’t awarded a penalty and is down on his luck after losing out to both Chelsea and the Gunners within the space of 48 hours.

He continued: "I think we should have had a penalty when Morgan Amalfitano was wrestled to the ground by (Nacho) Monreal. It was a disappointing day but a great effort.

“To finish with nothing and a defeat, the way we have had to accept it, is very disappointing indeed.

“We have had two of the hardest games in 48 hours, Chelsea away and Arsenal home. We didn’t deserve anything at Chelsea but we did today and we have to take it on the chin, not let it affect our confidence and hope we get back to winning ways and better decisions against West Brom.”

On a positive note, Allardyce reflected on an excellent 2014 for his side: "In one year 56 points is pretty good going. To try and get 56 or more in a season would be one hell of a season. It’s been a terrific 2014, it’s been a fantastic recovery from where we were at the end of the January, particularly from the players.”