Aguero put City ahead midway through the first half .
Arsenal recovered with goals from Wilshere in the 64th minute and Alexis Sanchez ten minutes later before Martin Demichelis levelled six minutes from time .
Aguero put City ahead midway through the first half but Arsenal recovered with goals from Wilshere in the 64th minute and Alexis Sanchez ten minutes later before Martin Demichelis levelled six minutes from time .