Manchester City 's captain is one of the best defenders in the world when he 's fit -- The muscle injury he picked up against Real Madrid is his fifth of the season .
Captain has managed just 15 Premier League games this term .
Manchester City 's captain is one of the best defenders in the world when he 's fit -- The muscle injury he picked up against Real Madrid is his fifth of the season , and he has managed just 15 Premier League games this term .