The second leg of the Champions League knockout playoffs concludes on Wednesday night, headlined by one of the continent's great cross-nation rivalries of recent years in Real Madrid vs. Manchester City.

Both Pep Guardiola and Carlo Ancelotti know how fine the margins are as Real Madrid and Manchester City get ready for a huge Champions League knockout phase playoff second leg. MORE — How to watch Real Madrid v Man City live,

Real Madrid's Champions League future all comes down to the second leg of their knockout phase playoff against Manchester City. For the fourth consecutive season, Real Madrid and Manchester City faced off in the Champions League knockout stage.