Many pundits have suggested this is a good time to play the Spanish champions and Champions League holders as Real Madrid suffered a 2-1 loss at Girona in La Liga at the weekend.
However, as Mauricio points out, their form in the Champions League is remarkable.
Winners in 2016 and 2017, Real Madrid have lost just two of their 26 matches in the competition in that time and you have to go back to October, 2012 and a 2-1 loss at Borussia Dortmund for their last loss in the group stage - an unbeaten run of 30 matches in the group stage.