Magic center Dwight Howard was diagnosed by a doctor in Los Angeles with a herniated disc in his lower back, a team spokesman said.
Howard sat out the Magic's 109-81 loss to the Atlanta Hawks Friday night, the fifth game he's missed in Orlando's last seven outings.
Magic spokesman Joel Glass said Howard was examined by Dr. Robert Watkins after Howard flew out there earlier Friday for a second opinion for what had previously be called back spasms since he injured his back at the end of March.
There is no timetable for his return and it will be based on how he responds to treatment.