Arsenal missed the chance to climb above North London rivals Tottenham as they slumped to a 1-0 defeat at Everton in a game that saw them create few chances.
Defender Phil Jagielka -- a late replacement for the unwell Michael Keane -- scored the only goal after 10 minutes, sliding home from close range, with Unai Emery's side unable to muster a response.
Arsenal thought they should have had a penalty after two minutes when Alexandre Lacazette ran into the area and appeared to be caught by Kurt Zouma, but referee Kevin Friend waved the appeals away.