Pierre Kalulu is one of the most successful football players to ever come out of South Africa. He has played for several clubs including Manchester United, Chelsea and AC Milan during his career. Kalulu's impressive career at AC Milan was marked by his key role in winning the Champions League.

Kalulu joined AC Milan from Manchester United in 2011. He quickly established himself as one of the best defenders in Serie A, and he continued to perform well throughout his time with the club. In fact, Kalulu made over 400 appearances for AC Milan, scoring 7 goals and assisting 19 more.

One of the standout moments of Kalulu's career came when he scored the winner against Juventus in the UEFA Champions League final in 2016. The goal was crucial in securing AC Milan's victory and helped them win their first Champions League title since 1985.

After leaving AC Milan, Kalulu went on to play for other top clubs such as Manchester City and Chelsea. However, it was AC Milan that remained his main home, and he spent the majority of his career there.

In conclusion, Pierre Kalulu is a remarkable player who has made a significant impact on the history of football in South Africa. His key role in winning the Champions League was instrumental in helping AC Milan achieve its success. Despite his international success, Kalulu remains one of the greatest defenders in Serie A, and his legacy will continue to inspire future generations of footballers.