Arsenal's fragility on the road returned, as a 3-1 defeat at Wolverhampton Wanderers put a huge dent in their hopes of a top-four finish in the English Premier League.
The north Londoners needed only a point to reclaim fourth spot from Chelsea, but conceded three times before half-time.
Unai Emery's side were stunned, as Wolves recovered from a slow start to take the lead with a stunning Ruben Neves free-kick, before Matt Doherty headed a second in the 37th minute.
It got even worse for Arsenal in first-half stoppage time, as they carelessly gave the ball away in midfield and Diogo Jota surged through to fire a shot past Bernd Leno.
A late Sokratis header from Granit Xhaka's cross was scant consolation for the Gunners fans, who had made the trip to the Midlands.
With three games left, Arsenal remain in fifth place, a point behind Chelsea and four behind third-placed Tottenham Hotspur.
Wolves, who were promoted last year, moved into seventh spot - a position that could offer a route into European football next season.