Basketball great says the "passion is still there, the desire to play is just not."
Former 76ers, Georgetown star will be honored at official retirement tonight at 76ers-Heat game.
Former Georgetown, Philadelphia 76ers star hasn't played in the NBA since 2010.
"The Answer" is expected to make his departure from the game official this week.
Former star says, "I ain't never treated fairly. Don't expect to be."
He still hopes to return to the NBA, though.