The 75 greatest players in NBA history, ranked by Player Efficiency Rating (PER)

13.    Kareem Abdul-Jabbar-24.58

NBA icon Kareem Abdul-Jabbar often goes under-recognized when talking about the greatest players ever but the numbers are there. Everyone knows about his deadly skyhook shot that was virtually unblockable but Kareem also drew plenty of free throws, helping him become a prolific scorer.

During his first 17 seasons in the NBA, Kareem managed to average at least 20 points per game and won the scoring title three times during that span. That resulted in 38,383 points, a number that seemed unbreakable before LeBron did it last season.

In addition to being an absolutely dominant scorer, Kareem was also a terrific rebounder and ranks third all-time. He is also second in all-time blocked shots with 3,459. However, the NBA didn't keep track of blocks during the first six seasons of his career. 

Based on that, he likely blocked well over 4,000 shots, an outrageous figure that likely would have helped him place higher in these all-time ranks. Be that as it may, he still ranks as one of the 15 best players ever, according to PER. That is lower than the general consensus but is understandable for the aforementioned reason.