Real Madrid have a 4% chance of progressing into the Champions League semi-final, according to Opta Analyst.
Los Blancos, who are the current holders of the trophy, were hammered 3-0 by Arsenal on Tuesday night.
The Gunners pulled off a sensational win at the Emirates, thanks to two stunning free-kicks by Declan Rice and a smart finish from Mikel Merino.
They will now travel to the Bernabeu with a comfortable lead ahead of the second leg.
Opta has now given Arsenal a 96% chance of qualifying for the semi-final.
The Premier League club have not played in the semi-final of the competition since 2009, when they were eliminated by Manchester United.
Inter Milan, who beat Bayern Munich 2-1 in the first leg of their quarter-final, have been given a 82.4% chance of making the last four.