Arsenal manager Mikel Arteta accused the officials of “changing the rules” and said Brentford’s equaliser against the Premier League leaders in Saturday’s 1-1 draw should have been disallowed for offside.

Arteta was left fuming when Ivan Toney’s controversial header cancelled out a first Arsenal goal for Leandro Trossard at the Emirates Stadium. The Gunners lost at struggling Everton last week and their latest setback leaves them six points clear of second-placed Manchester City as the title race heats up.