Ten players Arsenal will regret not signing this summer, including Chelsea duo & Man United new-boy

7) Matija Nastasic (Manchester City)

Out of favour at Manchester City and available for a reasonable price, Matija Nastasic could have been an ideal replacement in defence for the departing Thomas Vermaelen after his move to Barcelona. A top class youngster, Nastasic has lost his way somewhat in recent games with City, but could still fulfill his tremendous potential and provide Arsene Wenger’s side with some much-needed cover at the back.