Arsenal continued their impressive start to the Premier League season with a resounding victory over Portsmouth.
Abou Diaby opened the scoring with a first-time finish from Eduardo's cut-back and doubled the lead when he tapped in Emmanuel Eboue's cross.
Younes Kaboul headed home to give Portsmouth hope but Arsenal responded when the ball rebounded off William Gallas' face and into the net.
Aaron Ramsey slotted home Robin van Persie's pass to seal the hosts' win.
The result sends Arsenal top of the league on goal difference and maintained their 100% start to the season in all competitions. Portsmouth look in dire need of reinforcements with 3 defeats in their opening three games.