SINGAPORE- Gerard Deulofeu snatched a dramatic equaliser as Everton held the Gunners 1-1 at the Emirates Stadium.
A late, desperate substitution from Roberto Martinez paid off and it was no less than the tenacious Toffees deserved.
Brought on with 11 minutes left to play, Deulofeu scored with only his second touch in the 84th minute, hammering a rising shot into the top corner to infuriate Arsene Wenger and break the home crowd's hearts.
In truth, the draw is no disaster for Arsenal after a weekend of upsets, reverses and dropped points among their title challengers, but they had presented themselves with a wonderful opportunity to extend their lead at the Premier League summit.
But they blew it.
Or, more correctly, Everton seized it.
The men from Merseyside barely resemble the honest grafters led by David Moyes last season. Martinez ordered an immediate charge against Arsenal, a fearless march in the Emirates.
His men revelled in their attacking responsibilities.
Seamus Coleman and Bryan Oviedo linked up particularly well with Kevin Mirallas and Gareth Barry.
Everton's adventurous enterprise is always at risk to a sudden counter-attacking, but their high, pressing game is positively hypnotic. Viewers can't take their eyes off them. In the first half, Arsenal couldn't catch them.
In their pursuit of Ross Barkley, the Gunners were chasing air.