Manchester, England (SportsNetwork.com) - Manchester City will be without midfielder Samir Nasri for at least the next three weeks due to a calf problem.

Nasri was set to face his former club, Arsenal, on Sunday but manager Manuel Pellegrini has revealed that the former France international is unavailable and will miss "around three weeks to a month."

The 27-year-old has appeared in 16 of City's 21 Premier League games this season, assisting on four goals, for a side that sits two points back of Chelsea at the top of the table.

However, Pellegrini got some good news on the injury front recently with the return of leading scorer Sergio Aguero, who could be line to start against the Gunners, while Vincent Kompany is also fit after battling his own injury problem.

City also bolstered its attacking ranks this week with the signing of Swansea City forward Wilfried Bony, who has tallied nine goals in the Premier League this term.