They've got some decent forward players.
Walcott can be dangerous. His pace is obviously a weapon, but I still don't think his delivery is great - he put good balls in last night, but they were more 'into an area' rather than picking out a team-mate.
I think our defence will be able to handle the likes of Adebayour without too many problems. But van Persie is a threat, his movement and link up play are good and he can create and finish.
Arshavin would be the forward player I was most worried about though, he is good on the ball and seems to drift into space.
I watched some of last night's game against Villereal, & Fabregas was playing some good balls through to the forward runners, I reckon if we contain him we nullify a lot of their threat - Masch to to a job on him I reckon.
Their other outlet is the long ball into Adebayour. If we look after him and make sure we pick up the second balls, as well as cutting the supply from Fabregas, they won't be able to get quick attacks going high up the pitch - their wide players will be forced to try and run the ball - we can then double up on them and isolate them. They do quite often try to cut the ball from wide back into the space between the centre circle and the penalty area when either van Persie drops off or the have a central runner from deep (usually Fabregas) so we'll have to be alive to that - either one of the CB's stepping out, or possibly Xabi picking up.
Their defence is their weak point, especially at the moment with the injuries they've got, and quite often both their full-backs will push up at the same time, leaving them exposed to an early ball. I think we need to launch our attacks quickly using balls early into Torres, Kuyt and Riera, and keeping Kuyt and Riera very wide to stretch them. I would like to see Agger starting for this reason. I'd also like Fabio to start - although Insua played well against Blackburn, I think Fabio's ability to play an accurate ball upfield or cross-field would be very useful in exposing Arsenal's defence.