Markii uu ku biiray Arsenal, Diaby waxaa la siiyay maaliyaddii lambarka 2, taas oo ka tagtay tan iyo markii uu ka fariistay Lee Dixon. Wuxuu kooxdiisa u saftay 21 Janaayo 2006 isagoo ka soo muuqday badal ahaan guuldaradii 1-0 ee Everton. Saddex maalmood ka dib, wuxuu sameeyay kulankiisii ugu horreeyay ee 2-0 ee Football League Cup guusha ka dhanka ah Wigan. 21-kii Febraayo, Diaby wuxuu saftay UEFA Champions League markii ugu horreysay isagoo ka soo muuqday badal ahaan guushii koowaad ee kooxda wareega 16-ka ee kooxda Isbaanishka ee Real Madrid.
Aston Villa