Arsenal missed their chance of going to the top of the Premier League standings as Everton came from behind to get a first victory since October.
Arsenal had won their previous three games. They were rewarded for as Alexis Sanchez’s free-kick deflected in off Ashley Williams.
Everton’s Seamus Coleman equalized just before half-time,
Home captain Phil Jagielka was sent off in the dying minutes for a second bookable offence and Arsenal had two shots cleared off the line in a frantic finale.
But they could not prevent a first league defeat since their opening match of the season, leaving them three points behind leaders Chelsea, who have a game in hand.
Everton, meanwhile, are up to seventh, four points behind fifth-placed Tottenham.