Martin Demichelis has been with
After Sergio Aguero put defending champion Manchester City in front in the first half, Arsenal staged a fight-back after the break inspired by Jack Wilshere. The midfielder clipped an equaliser past goalkeeper Joe Hart before setting up Alexis Sanchez for a volley in the 74th minute.
The 32-year-old Argentine centre-back, who joined Man City from Atletico Madrid, sustained a knee injury during a training session.
The 32-year-old Argentina international is renewing his ties with City's Chilean manager Manuel Pellegrini, the pair having worked together at both River Plate and Malaga.