Explained: Mikel Arteta won't be happy! Why West Ham's controversial goal counted against Arsenal as VAR faces repeat of Newcastle effort that sparked huge rant from Gunners coach

Arsenal conceded a familiar controversial goal as they fell 1-0 behind West Ham despite claims that the ball had gone out of play on Thursday.Article continues belowArticle continues belowArticle continues belowArsenal concede controversial openerBall flirted…