They will have to do the greatest comeback in Europe since 1985
Madrid unexpectedly fell against Wolfsburg, 2-0. A result that forces the white club to turn the tie with more than two goals ahead and with the danger that the Germans score away, which would double the value of the goal.
Statistics show that Madrid will have it difficult to turn the tie, although their soccer level is much higher than Wolfsburg's, ranked 8th in the Bundesliga.
Some data which should worry Madrid about his comeback
1 - Only 17% of the 678 qualifying rounds in Europe which began 2-0 have ended in a comeback (note: all of them, with the current rule of the double value of the away goals.)
2 - Real Madrid have not come back a European tie at Bernabéu with 2 or more goals difference since 29 years ago against Belgrard. They have missed the last three ones they tried.
3 - Since 2002, Real Madrid have not come back any European tie in which they lost the first leg. 8 frustrated comebacks: Arsenal in 2006, Rome in 2008, Liverpool in 2009, Lyon in 2010, Barça in 2011, Bayern in 2012, Borussia in 2013 and Juventus in 2015.
4 - In order to try to be in the semifinals, Real Madrid will have to do the biggest comeback in Europe since 1985, when they got back in after a 4-0 win by Borussia Dortmund. They won the second leg 5-1.
5 - Wolfsburg have qualified in the five occasions they won the first leg by two or more goals difference in European competitions.
6 - Since 1993, no German team has been knocked out when they obtained a difference of two or more goals in European competitions. The last one was Stuttgart, which lost vs Leeds in the 92/93 season.
Source: As, @pedritonumeros, @laligaennumeros and @2010MisterChip