Interesting ucl stats (but IMO just a coincidence). Number 1: but looking at the last couple (10) of semi finals: 2015: Real and Bayern played second leg at home; got eliminated
2014: Bayern and Chelsea played second leg athome; got eliminated
2013: Barca and Real played second leg at home; got eliminated
2012: Barca and Real played second leg at home; got eliminated
2011: Man U and Barca played second leg at home; went through
2010: Barcelona and Lyon played second leg at home; got eliminated
2009: Arsenal and Chelsea played second leg at home; got eliminated
2008: Man U and Chelsea played second leg at home; went through
2007: Liverpool and Milan played second leg at home; went through
2006: Villareal and Barca played second leg at home; Barca went through Villareal got
eliminated In 6 of the last 10 semi finals, both teams playing the second leg at home lost the tie. I
didnt go further back than 10 years but it sure seems like a trend, especially in the last 4 straight years.
Interesting stat number 2( though the trend was stopped by juve's defeat in the final): beat the defending champions in the semi finals and win the cup e.g Madrid beat bayern, bayern beat barca, chelsea beat barca, inter beat barca etc. Since barca was beaten in the quarters, the stat won't apply.
interesting stat 3: a team that has been in the champions league final usually comes back to win it two or three years later, e.g bayern, chelsea, ac milan etc. The stat might apply in athletico's case.
Interesting stat 4: every time cristiano scores against city they always end up losing.
After analysing all the stats, it seems we might have an athletico vs realmadrid final with athletico madrid getting their revenge just like liverpool did in 2006-2007 vs milan. The stats are more on athleticos side. Think city can also go through but they lack experience that madrid have at this level. History is also another factor