In this April 24, 1989, file photo, Los Angeles Lakers’ Kareem Abdul-Jabbar goes up on a sky hook against Seattle Sonics’ Xavier McDaniel during an NBA game in Inglewood, California. Abdul-Jabbar is being treated for a rare form of leukemia, and the basketball great said that his prognosis is encouraging. (AP Photo/Reed Saxon, File)

In this April 24, 1989, file photo, Los Angeles LakersKareem Abdul-Jabbar goes up on a sky hook against Seattle Sonics’ Xavier McDaniel during an NBA game in Inglewood, California. Abdul-Jabbar is being treated for a rare form of leukemia, and the basketball great said that his prognosis is encouraging. (AP Photo/Reed Saxon, File)