Ancelotti names his first choice left-back for this season
Speaking after the game against Club America, Carlo Ancelotti said: "Mendy is our starting left-back, but if he has problems, Alaba can take his place."
Real Madrid started the game against Club America with Ferland Mendy at left-back. In the second half, David Alaba replaced the Frenchman in that position.
Unlike the previous game against Barca, Antonio Rudiger stayed at centre-back, with Nacho starting as his partner in defence.
Los Blancos finished the game 2-2 after conceding a penalty towards the closing stages of the game.