By Mike Walters At face value, Arsenal came out of the international break smelling of roses ahead of their title showdown at Manchester City. No fresh injuries, a midfield kingpin walking 10ft tall after being handed the England captain’s armband and rivals ostensibly hit by two key players shuffling off early in the Three Lions’ friendlies against Brazil and Belgium. But who played the system like a golden harp and who will have the last laugh? To win their first Premier League crown in 20 years, most observers agree the Gunners cannot afford to lose at the Etihad, where they have won just o…