A 2-1 win at the Allianz Arena last week gave Real Madrid the edge, with Bayern Munich now needing to score at least twice to get anything out of the tie at the Bernabeu.
It sets up an enthralling second-leg to this quarter-final and here, we look at what each side needs to do in order to win the match and advance to the semi-finals.
Let’s start with the home side…
HELP MARCELO
Bayern’s clear strategy in the first-half was to feed Arjen Robben as much as possible, attempting to isolate him one-on-one against Marcelo.
The Brazilian is often left unsupported by his teammates, especially when Cristiano Ronaldo plays wide left in a 4-3-3, and Zinedine Zidane must give someone responsibility to track back.
GET THE RIGHT BALANCE
Scoring goals is never a problem for Real Madrid, who have registered at least one in every single game since their goalless draw at Man City in last season’s semi-final first leg.
But against a team with Bayern’s firepower they cannot make scoring their only aim, and striking the right balance between defence and attack will be crucial.
As for Bayern Munich…
STOP SERGIO RAMOS
Bayern only still have a chance in this tie thanks to a linesman’s raised flag in stoppage time last week, correctly cancelling out a Sergio Ramos set-piece header for offside.
That narrow escape must be a serious warning for Bayern, who cannot afford to ignore the attacking threat posed by Madrid’s captain from dead-ball situations.
FEED LEWANDOWSKI
Robert Lewandowski has enjoyed outstanding success against Real in the past, scoring a hat-trick in Dortmund’s 4-1 thrashing of the Spanish giants four years ago.
Bayern badly missed their injured leading scorer last week, but now he’s back and they must make the very most of his firepower by giving him plenty of ammunition.