Arsenal boss Mikel Arteta has defended his team's lack of goals.
Arteta insists last season's effort was a one-off as the Gunners struggle this time around.
"What they [the forwards] did last year was exceptional and we knew that to maintain those numbers would be extremely difficult because it was a one-off," said Arteta.
"Not just for us, a one-off in the league. We know that we need all the resources and all those kinds of goals to maintain the level that we want in the league.
"When it comes to those spaces, the timing and the definition of the action [in front of goal] that becomes trickier to coach and certainly to replicate as an action in the game. It's very tricky but it's something that we have to improve, especially in the way we have not transformed recent chances into goals."