Decision time for Carlo Ancelotti, as Real Madrid try to overcome Juventus' 2-1 lead on aggregate to reach the 2015 Champions League Final against Barcelona. Karim Benzema is back and "100% ready", according to Ancelotti, which means that the Italian will have plenty of options to choose from.
Real Madrid will likely try to play with calm, controlling the tempo of the game and preventing Juventus from having goalscoring opportunities. Meanwhile, the Italian side will probably sit back and counterattack through Morata and Tévez's speed, but an away goal would be extremely valuable for them, so it would make sense to attack early in the game and try to dismantle Real's foreseeable run on goal.
Either way, both coaches have the tools to surprise each other. Ancelotti could deploy Ramos in the midfield and Allegri could go for the same 4-3-1-2 lineup that worked so well in the first leg, although these two options aren't very likely.
Real Madrid (4-3-3)
Carvajal, Pepe, Ramos, Marcelo
Isco, Kroos, James
Bale, Benzema, Ronaldo
Two things could change about this lineup. First of all, Chicharito could be the man starting in Benzema's spot, as the French striker hasn't featured in a while. Ancelotti himself admitted that this is something he's considering, because Chicharito has the rhythm to start and play the whole game while Benzema would help his team a lot if ready.
Secondly, the Italian coach could give Ramos another shot at the midfield to have a physical presence against Juventus' line. That would most likely drop Isco out of the Starting XI and Varane would play alongside Pepe in Real's back four.
All things considered, Real Madrid's most probable lineup is the one listed above.
Lichsteiner, Barzagli, Bonucci, Chiellini, Evra
Vidal, Pirlo, Pogba
Allegri will almost surely decide to play under a 5-3-2 formation that is more solid on defense, but he could also deploy the usual 4-3-1-2 lineup that succeeded against Real in the first leg. If he finally chooses this latter option, Barzagli would probably drop to the bench and Marchisio would be introduced in the midfield, moving Arturo Vidal to the attacking-midfielder position behind Morata and Tévez. The Chilean player performed very well there and it would be reasonable for Allegri to use that same formation, although he will likely protect himself by playing with a back five.