#4 Real Madrid's vulnerable right side on defence
When Dani Carvajal went off the pitch in the first leg of the Allianz Arena in the second half of the first leg, Lucas Vazquez took up the role of the right-back with Casemiro coming to his aid.
The same strategy was expected to be adopted tonight, with Carvajal set to miss the game and Nacho not completely fit. However, Zinedine Zidane preferred to start Mateo Kovacic with the aforementioned Brazilian on the bench. The onus thus fell on Luka Modric to take up the mantle and cover up the spaces left open by the makeshift fullback Vazquez.
While the Croatian did so commendably, it took away the offensive part of his game as he was physically spent seeing off an ever prowling Franck Ribery with David Alaba always available to lend a helping hand on the overlap.
This does not take away the fact that Vazquez was found wanting on many occasions by the Bavarian duo. Die Roten had a certain preference to play from the left flank when in possession and it was easily visible why.