Pierre Kazeye Rommel Kalulu Kyatengwa (pronounced [ka.lu.lu]; born 5 June 2000) is a French professional footballer who plays as a defender for Serie A club Juventus, on loan from AC Milan.

[6] On 10 December, he made his professional debut, playing the entire Europa League game against Sparta Prague as a left-sided centre-back; as Milan won 1–0, he was praised for helping the team keep a clean sheet.

[7] Three days later, on 13 December, Kalulu made his debut in Serie A, replacing the injured Matteo Gabbia in the fifth minute of a home game against Parma.

[10] On 12 March against Empoli, Kalulu scored his first goal of the season, a powerful curling shot from outside the box, as Milan managed to win 1–0 and stay top of the league.

The 2023–24 season further undermined Kalulu's career at Milan, with him limited to just 11 appearances in all competitions, mainly due to several injuries requiring months of rehabilitation.