Pierre Kalulu is a professional footballer who has played for several clubs in his career, including AC Milan. He began his professional career with Monaco and has since played for several other top clubs, including Real Madrid, Juventus, and Manchester United.

Kalulu's playing time with AC Milan was significant as he was one of the most important players on the team during their successful season in Serie A. In fact, he was named the club's player of the year after helping them win the league title. He also scored two goals in the final against Inter Milan, which helped them to secure the title.

Kalulu's performances were not limited to just one game, but rather they were consistent throughout the entire season. He played in all of AC Milan's matches and was a key player in their success. He also contributed to the team's defensive stability, as he was often called upon to defend against some of the best strikers in the world.

Overall, Pierre Kalulu's contribution to AC Milan's success was significant. He was a valuable asset to the team and will be remembered as one of its most important players.