19. Dikembe Mutombo
This eight-time All-Star has come a long way from the Democratic Republic of Congo. Mutombo moved to the US to go to college at the age of 21. In 1991, he joined the Denver Nuggets. The Congolese star made an instant impact on their defense. Meanwhile, his finger-wag after each block became iconic.

Nobody could have expected him to continue playing until 2009. After turning 40 in 2006, he became the oldest player in NBA history to record more than 20 rebounds in a game with 22. Mutombo is also a four-time NBA Defensive Player of the Year. Finally, his humanitarian work also deserves much respect.