Turns out he has a heart abnormality. Seems super harsh that they just voided his contract. I wonder whether the Knicks would have any interest (given our previous willingness to take on guys with heart issues, cough! cough!) in taking him on, seeing him through whatever operation he needs (as the Celtics are doing with Green), and then having him on the team after. I guess it all depends on how serious the heart thing is.