stats of the last 3 arsenal games in the premier league:

Arsenal 0 - 2 Brentford

Arsenal 0 - 2 chelsea

Arsenal 0 - 5 City

the weird part is that the arsenal failed to score at least 1 goal in the last 3 premier league games but managed to score 6 goals in the game against west bromwich in the EFL Cup, what's wrong with the arsenal?