4. Dikembe Mutombo (Career Average 51.8% FG, 9.8 PPG)
Separating four and five on this list was difficult, but I think going with Mutombo in this slot is the right move. Obviously, his offense game is lacking compared to most of his peers on this list, but the dominance he showcased on defense alone gave the Sixers what they needed at the time the acquired him during the Allen Iverson era.
When the team traded for him mid-way through the 2000 season, he helped take the Sixers to a finals bid against the Los Angeles Lakers. Facing the likes of Kobe Bryant and Shaquille O’Neal in their primes would be no easy task, but the Sixers miraculously stole game one in L.A. before losing the next four.
Mutombo was on the back end of his career, but still gave the Sixers his all adding the defensive presence the team needed so desperately. He will always be remembered in Philadelphia as an elite presence around the rim.