In a promotional clip of an upcoming interview with Diane Sawyer, Bruce Jenner says that family are "the only ones I'm concerned with."

Jenner, the record-breaking Olympic athlete and reality TV star of Keeping Up With the Kardashians, is expected to discuss a transition to living as a woman, among other topics.

"I can't let myself hurt them," Jenner tells Sawyer, referring to Jenner's six biological children and four Kardashian stepchildren.

‚ÄúMy whole life has been getting me ready for this,‚Ä̬†Jenner said.

The special, ‚ÄúBruce Jenner ‚Äď The Interview,‚ÄĚ airs on ABC at 9 p.m. ET. Fusion is a joint venture of Univision and ABC.