Juventus scored early, especially in the fourth minute, when Polish international Arkadiusz Milik crossed the Argentine midfielder, loaned from Paris Saint-Germain, Leandro Paredes, and followed it into the goal.
Benfica equalized in the 43rd minute through Joao Mario from the penalty spot.
Benfica’s Greek international goalkeeper Odyssias Vlachodimos saved his own goal by blocking a powerful shot by Milik (51).
The Brazilian David Neres gave the Portuguese team the lead with a loosing ball (55).
Juventus played today’s match in the absence of more than one key player, most notably Federico Chiesa, French Adrian Rabiot, compatriot Paul Pogba and Polish international goalkeeper Wojciech Szczesny.
The “Old Lady” team is in a difficult situation and looms in front of its fans the issue of exiting the group stage for the first time since the 2013-2014 season.
It is the first time that Juventus has lost its first two matches in the group stage in the history of its participation in the competition.