This fixture is reliably the kind where one bets not on the first goalscorer but the first player to leave the stage at the referee's invitation. In their past half-dozen encounters these two sides have averaged around seven yellow cards per game, but last night's match set a remarkable new standard of 11, including two second yellows to Danny Mills and Lee Bowyer. So you might expect the Highbury turf to have been scarred with all manner of blood, guts and giblets by full-time. Yet, oddly, it wasn't really a dirty game.