Olympian Greg Louganis says in an Oprah: Where Are They Now segment that he hopes Caitlyn Jenner is happy.

Louganis, who came out gay and HIV-positive in his 1988 best-selling memoir Breaking the Surface, is back in the headlines, appearing in the HBO documentary Back on Board, where he reunites with diving, the sport he once dominated. His image will also appear on an upcoming Wheaties box, General Mills recent announced.

“We've done a lot of events together, Bruce [Jenner] and I,” Louganis says in the clip. “It was just recently that I met Caitlyn. At the Voice on Point Foundation, I introduced her.”

“The biggest thing I'm concerned about is I hope that she's happy. That's all I care about.”

“We all have our journey and it can be challenging at times. And I truly hope that she's just happy,” Louganis added.