Real Madrid's upcoming opponent, Juventus, failed to win for the sixth consecutive time, losing 2-0 to Como 1907 on Sunday.
The defeat was orchestrated by Nico Paz, a former and possibly future Madrid player, who opened the scoring after three minutes.
Nico Paz took a short corner and sent a sharp cross to the far post, where central defender Marc-Oliver Kempf scored.
Juventus struggled to respond, managing only three shots on goal, and eventually conceded a second goal.
The 21-year-old Paz was involved again, showcasing his precise finishing skills after counterattacks and dribbling.
Juventus loses to Como 1907 ahead of Bernabéu visit.