Ian Thorpe, the Australian Olympic swimmer nicknamed the Thorpedo and Thorpey who has previously denied rumors he's gay, will discuss his sexuality in an upcoming interview.

Australia's channel TEN is advertising a “no limits” interview between Sir Michael Parkinson and Thorpe with a promo in which Thorpe is asked about his sexuality.

“You've always said that you're not gay.  Is all of that true?” Parkinson is seen asking in the clip.

The 31-year-old Thorpe has won five Olympic gold medals, the most won by any Australian. He was also the most successful athlete to compete at the 2000 Summer Olympics.

In an interview last year to promote his autobiography This Is Me, Thorpe said the persistent rumors question his integrity.

“Yeah, look, the thing that I find hurtful about it is that people are questioning kind of my integrity and what I say,” said Thorpe. “That's the only part that I find hurtful. Like is that, you know, this is something that I would be embarrassed about, that I would hide or whatever else.”

“I don't want to offend anyone that, you know, whether they're people [who] have friends that are gay or whatever else, I don't want to offend them by … getting angry about it, getting frustrated about it. The only part that I'm frustrated with is that people think that I'm lying,” he added.

Channel TEN will broadcast its interview on Sunday, July 13.