Danny Welbeck ended his former side, Manchester United’s 25-match unbeaten run in the Premier League, scoring Arsenal’s second in a 2-0 win, which handed Arsene Wenger a first top-flight triumph over Jose Mourinho.
The Portuguese coach tempted fate by making eight changes from Thursday’s Europa League win over Celta Vigo and it ultimately backfired, with the hosts consigning them to their first league defeat since losing 4-0 to Chelsea in October.
After a particularly frenetic start which saw each side waste good opportunities, Arsenal looked the more purposeful going forward and spent long periods probing a stubborn United defence which included Premier League debutant Axel Tuanzebe.