Kalulu has committed to Juventus until 2029, with the club paying a total of €14.3 million, plus an additional €3 million in bonuses. This deal marks a significant investment in the team's defense.

The club announced the news, highlighting that Kalulu's first season with Juventus has been a successful one. As the defender turns 25 years old, the team has exercised the option to make his move permanent, bringing him into the fold as a regular member of the squad.

This development means that Kalulu will now be a part of Juventus' squad for the upcoming Club World Cup tournament.