Arsenal manager Mikel Arteta has accused the referees of "changing the rules" after his side dropped points against Brentford.
The Gunners missed the chance to move eight points clear of second-place Manchester City after drawing 1-1 against the Bees.
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There was a bit of controversy surrounding Ivan Toney's equaliser, which the Spanish coach claims was offside.
"I just looked back and it is offside yes," Arteta said. "They will probably give an explanation later in the week. Today we haven't got one.
"You have to apply certain principles in defending and you do that by sticking to the rules. Suddenly you change the rules and then you have to change your principles.
"So tell us before so then you don't hide the line that high, because you're always going to have an advantage if you get blocked.
"Yeah we always assess the game with them [Premier League] and we give our views and our points. But it's too late."
Manchester City can cut Arsenal's to three points if the beat Aston Villa on Sunday, before they lock horns with Arteta's side on Wednesday night.
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