real madrid host atletico in champions league quarter-final second leg .
first leg at vicente calderon finished 0-0 after physical encounter .
carlo ancelotti reportedly spoke to diego simeone about life in madrid .
italian boss told him life would be a lot easier if atletico were n't around .
real must win at the bernabeu to go through , and ancelotti may not last .
winning nothing at real madrid results in an automatic dismissal .
galacticos are currently two points adrift of la liga leaders barcelona .
ancelotti has only won three times in 12 games against simeone 's atletico .