Manchester United supporters have mocked Arsenal in the wake of their FA Cup final triumph over Manchester City. After a disappointing domestic campaign, Manchester United were able to end their season on a high after they won the FA Cup with a 2-1 victory over Manchester City on Saturday. Arsenal, however, were supremely impressive throughout the season, but were left disappointed on the last day of the Premier League campaign as they were beaten to the title by Manchester City. Arsenal miss out on silverware again as Manchester United triumphArsenal made history this season, as they recorded…