Great news from Leon Spinks' corner ... the Hall of Fame boxer is at home and recovering after a serious health scare in December.
As we previously reported ... 66-year-old Spinks -- who famously beat Muhammad Ali in '78 -- was fighting for his life after being diagnosed with prostate cancer, which spread to his bladder.
TMZ Sports has learned ... Spinks has made tremendous improvement and doctors recently cleared him to leave the hospital, which is a big deal considering how serious the situation was.
“Leon is home from the hospital and is slowly relearning his daily routine and getting physical therapy a few times a week," Spinks' rep tells us.