The Juventus team is now taking every match very seriously. Because Juventus don't want to make any more mistakes. Currently there is no such thing as a weak team, every team is capable of building their own. That's why Juventus will never take Sporting team lightly.
They do hav to do this seriously because going far in Europa League and get a position in top four of Serie A or winning Europa League to be eligible for Champions League 2023 - 2024 (next season) means a lot for Juventus financially. It will help them to have more budget for transfer to rebuild their team. It helps them to avoid departure of star players and together there are big net effects if they can not play in Champions League next season.
I am not sure Juventus can split their focus perfectly for this session, because when I look they are still on unstable at the moment, their schedule is very busy on Seri A, and also have a semifinal Copa Italian cup, Juventus are just growing up and still need time for recovery which I think they still not ready to deal with this busy match on europa.
They only have two missions in this season, Serie A and Europa League. Chance in Europa League looks better in Serie A when they will have to depend on other club performances. In Europa League, they don't have to rely on other clubs and only need to beat each opponent round by round (quarter final, semi final and final). In Serie A, they need to play well and need luck to join top four and I think they will pay more focus on Europa League.
They will face Sporting Lisbon. The first match will be played in Italy. I think confidence in Juventus has increased lately. I am one of those who trust Juventus like everyone else. Juventus has the power and squad quality to beat Sporting Lisbon. Even though Lisbon was a tough team, they had a good luck with Arsenal and they won. The same may not happen against Juventus.
Beating Sporting Lisbon won't be easy after they surprisingly won over Arsenal. Sporting will have higher confidence after such winning and become a little more dangerous. Juventus must watch videos and analyze weakness of Sporting to beat this opponent who are not easily to give up even after they have conceded goal and disadvantage.