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FILE - In this Sept. 11, 2013 file photo, former Olympic athlete Bruce Jenner arrives at the Annual Charity Day hosted by Cantor Fitzgerald and BGC Partners, in New York. ABC says the former Olympic champion and patriarch of the Kardashian television clan will give a two-hour interview to Diane Sawyer airing on Friday, April 24. (Photo by Mark Von Holden/Invision/AP, File) Image Credit: Mark Von Holden/Invision/AP

Former athlete and TV personality Bruce Jenner says his only concern is his children and he is desperate not to hurt them. He is reportedly preparing to undergo gender reassignment surgery.

The 65-year-old, who has children Burt, 36, Casey, 34, Brandon, 33, Brody, 31, Kendall, 19 and Kylie, 17 and stepchildren, Rob, 28, Khloe, 30, Kourtney 36 and 34-year-old Kim, shared his worries in a new clip from his upcoming tell-all interview with Diane Sawyer, reports femalefirst.co.uk.

In the snippet, Jenner says: “I can’t let myself hurt them. They’re the only ones I’m concerned with.”

Although he appears to have no regrets about his decision, adding: “It made me who I am.”

In previous clips released from the two-hour long show, entitled Bruce Jenner: The Interview, he is also heard saying: “My whole life has been getting ready for this.”