Craig Sager

Popular NBA on TNT broadcaster Craig Sager says his cancer is no longer in remission, a sobering revelation that he shared with HBO's Real Sports.

"I've already had two stem cell transplants," Sager tells Real Sports correspondent Bernard Goldberg. "Very rarely does somebody have a third."

Here's a clip from the story that premieres Tuesday at 10 p.m. ET/PT:

Sager was diagnosed with acute myeloid leukemia in April 2014. His fight has included a bone marrow transplant from his son.

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