The first leg, which was played at the Bernabeu on Tuesday, ended in a 1-1 draw.
Atletico led 1-0 at the interval this evening following an early strike from the Croatian Mario Mandzukic.
Read how it all unfolded in Sports Mole's minute-by-minute live commentary of the action below.
ATLETICO: Moya; Juanfran, Miranda, Godin, Siqueira; Tiago, Gabi; Koke, Garcia, Griezmann, Mandzukic
REAL: Casillas; Carvajal, Ramos, Varane, Coentrao; Kroos, Alonso, Modric; James, Benzema, Bale
© Getty Images
0 - Iker Casillas has not lost any of the 28 derbies against Atletico Madrid in which he has started (W21 D7). Titular— OptaJose (@OptaJose) August 22, 2014