Before retiring after the 2008–09 season, Mutombo, 56, played 18 NBA seasons
18 seasons, eight All-Star Games, and selections to the NBA All-Star team.
The Hawks retired Mutombo's number 55 in 2015, the year he was inducted into the Hall of Fame for the game.
Mutombo, who is 7 feet 2 inches (2.18 meters) tall, was found while attending Georgetown University.
second on the NBA's list of blocked shots when he retired in 2001, spells at the Philadelphia 76ers.
He was selected by the Denver Nuggets in the first round of the 1991 NBA Draft, fourth overall.
He set records for blocks per game and blocked shots for five straight seasons while also leading the NBA in both categories.
Since leaving the professional game, Mutombo has worked as a humanitarian and an international ambassador for the NBA.