According to La Gazzetta dello Sport, Boga is the only "safe bet" among the players brought in by Comolli who is certain not to be sold this summer.
The French-born Ivorian international joined Juventus in the winter window on loan with an option to buy for a low price of €4.8 million, and has since proven to be a reliable rotation option with Kenan Yıldız, possessing enough versatility to play multiple positions depending on the Bianconeri's attacking needs.
As for the remaining players signed by Comolli, none are guaranteed to stay.
Juventus will listen to offers for Jonathan David and Loïs Openda. David joined on a free transfer, meaning Juventus would certainly make a capital gain if they sold him this summer. However, his high salary of €6 million, coupled with an unsatisfactory first season in Serie A, makes finding a suitable buyer relatively difficult.
Selling Openda might be trickier, as Juventus signed him on a loan with an obligation to buy for over €44 million.
Žegrova, who has never started for the Bianconeri in Serie A this season, is also considered surplus to requirements. There are reports that Turkish club Trabzonspor is interested in him.
In addition, there's João Mário, who was permanently signed in the summer window and immediately loaned to Bologna, essentially a swap deal with Emil Holm. As things stand, the Portuguese player is not expected to be a regular in the Juventus first team next season either.