James Tarkowski opened his Everton scoring count at the perfect time, rising about the Arsenal defence to deliver the killer header which sealed their 1-0 win on Saturday afternoon.
It was the first match for new boss Sean Dyche, jettisoned into the dugout to replace Frank Lampard, and the three points lifted the Toffees out of the bottom three for the time being.
Meanwhile, Arsenal missed out on the chance to move further clear at the top of the Premier League table, and could have their lead reduced to just two points before the end of the weekend.