Arsenal have been in great form in recent months, but they were punished for sloppy play at the back by the underdogs.
Miscommunication between Xhaka and Kolasinac meant that the all fell to Cavaleiro in the Arsenal half.
The forward was allowed to drive forward in to the box and played the ball to striker Jimenez.
Wolves' no.9 gave the ball straight back to his team-mate, who coolly stroked the ball in to the bottom corner of the net.