The Gunners were soundly beaten by their fellow title challengers and the manager held his hands up after switching their formation and set-up
Arsenal boss Joe Montemurro took full responsibility for his side's 4-1 defeat to Chelsea, calling it the “biggest setback” in his two and a half years with the Gunners.
The Blues raced into a 3-0 lead within 20 minutes of kick-off at the sold-out home of their Women’s Super League rivals and dominated the majority of the game.
The result means Arsenal surrendered top spot to Manchester City and Montemurro admitted his side's tactical issues were his fault, with Arsenal's set-up much narrower than normal.