After a disappointing defeat to Dinamo Zagreb, which saw Olivier Giroud being sent off in the first half and Theo Walcott scoring nothing more than a consolation goal, Arséne Wenger will need to have a long and hard think about who he decides to start in the centre forward role against a struggling Chelsea. Wenger's only options are Theo Walcott and Olivier Giroud as Danny Welbeck is set for a long spell on the sidelines.
Goalscoring form
Both Olivier Giroud and Theo Walcott have scored two goals in six games, which is nothing remarkable in generally what has been a slow start for Arsenal. With that in mind, both players can be accused of squandering a number of chances in-front of goal.
Despite the fact that Chelsea have been playing poorly in recent weeks, the Gunners will have to be at their attacking best to counter José Mourinho's side - who ultimately have a point to prove as they entertain their London rivals on Saturday.
Goal-scoring threat
In terms of who would be more of a goal-scoring threat, my personal pick would be Olivier Giroud. So far Theo Walcott has yet to convince many supporters that he can play against top sides with his back towards goal. The centre-back pairing of John Terry and Gary Cahill could turn out to be too strong for Theo Walcott and his pace could henceforth be more effective on either wing as Chelsea's wing-backs have had a torrid start to the season. Generally, Arsenal look a lot more dangerous when Walcott is playing on the right-hand side, whilst Giroud is operating down the middle, giving the wingers an option when crossing.
Mental state
As of now, logically Theo Walcott would be the player who is mentally stronger as he bagged himself a goal in midweek, which will boost his confidence. On the other hand, Olivier Giroud - who received a red card midweek, leading to even more criticism being hurled his way - would be wondering what he's doing wrong right now in an Arsenal shirt but could also be very determined to make his presence felt to the Chelsea backline.
Drop Ramsey or Cazorla and start both
Throughout last season, as well as the start to this campaign, Arséne Wenger has insisted on utilising Aaron Ramsey on the right-hand side, which has worked in a few games but however removes the width within their play - due to the Welshman always drifting inwards.
With Walcott fit and naturally being a right winger himself, perhaps it's about time Wenger picked either Santi Cazorla or Aaron Ramsey to be dropped to the substitutes' bench and started both Olivier Giroud and Theo Walcott, with Alexis Sánchez being deployed on the left hand-side, enabling Arsenal to play against The Blues with their strongest attacking trio. Last year, the trio of Ramsey, Cazorla and Francis Coquelin seemed to work beautifully in the second half of the season, but this season it's yet to click. With Aaron Ramsey being known playing deeper in the midfield, making late runs and getting on the end of things, Wenger will have yet another selection problem on his hands ahead of kick-off.