Arsenal lost ground on Chelsea at the top of the Premier League table on Tuesday night after they were beaten by Everton.
Alexis Sanchez continued his fine form by opening the scoring but a Seamus Coleman header levelled the scoreline before Ashley Williams scored the winner shortly before full-time.
Here, Sportsmail's Jack Gaughan picks out five key factors from the 2-1 win.
More than a spoiler
One Arsenal midfielder who is definitely set for a new contract is Francis Coquelin, imperious at their core alongside Granit Xhaka.