Jude Bellingham's second half goal gave Real Madrid a 1-0 win over Juventus at the Bernabeu
Samuel Mbangula's late winner sees Juventus take a slender lead to Eindhoven for the second leg
Juventus join Benfica in the play-off round despite a defeat to the Portuguese side in Turin.
VfB Stuttgart claimed an impressive 1-0 win at 10-man Juventus thanks to El Bilal Toure's stoppage-time strike as the hosts suffered their first loss this season.
Ten-man Juventus twice came from a goal down to stun hosts RB Leipzig 3-2 on Wednesday thanks to Francisco Conceicao's 83rd-minute winner, making it two wins from two matches in the Champions League.