Juventus started their Champions League season with a well 2-0 victory over Valencia despite Ronaldo got a red card. Ronaldo will miss tomorrow clash with Young Boys but I believe they will win easily. Young Boys didn't score in the last match against defensively poor side Man U in hometown. So, it will be like a biting iron for Young Boys to score against the stingy defence of Juventus. Juve's plan for tomorrow will be score as much goal as they can and beat Young Boys to reach the top of the table where the only possible thing swiss champ can do is, finish third in the table and play Europa league.

source - https://www.ilbianconero.com/a/pjanic-suda-in-vacanza-mandzukic-lo-prende-in-giro-video-85085

With the toughest team like Juventus, Young Boys have in their own problem too. They will miss in form Mbabu and Gregory in defence and Sow in midfield. This makes even harder for them to stop Juventus. While Juventus are in good form. They won all league games and every player is playing well. Mandzukic and Pjanic are in good form and can score more and more goals playing ball to ball. Dybala is also improving again and defence is in good shape. Juventus remains unbeaten in their last 18 home games of UCL group stage and I am sure they will keep this record against Young Boys.