Brooks Nader Says She Has 'Proof' Ex Gleb Savchenko Is a 'Cheater' as He Seems to Weigh In: '100% Fake'

"I don't know where you got your information from ... but I will be the first one to tell you that is incorrect," Savchenko lip-syncs in a new TikTok video

Brooks Nader and Gleb Savchenko are addressing the rumor mill.

The 41-year-old Dancing with the Stars pro seemingly slammed his ex-girlfriend's allegation that he cheated on her during their relationship in a recent TikTok video.

The clip sees Savchenko lip-syncing to an audio recording that says, "I don't know where you got your information from, I don't know who your source is, but I will be the first one to tell you that is incorrect."

He captioned the post, "Your 'source' needs a refund… because that story? 100% fake."

Savchenko's TikTok video was shared just ahead of the trailer for Love Thy Nader, Nader's forthcoming reality show with her sisters.

@glebsavchenkoofficial Your ‘source’ needs a refund… because that story? 100% fake. 🗑️ #lies ♬ original sound - Hoop Zig

In the Love Thy Nader trailer, the Sports Illustrated model discusses her romantic relationship with Savchenko, which began in 2024 after they were paired on Dancing with the Stars.

"Gleb and I met through Dancing with the Stars," she recounts. "In our family, we say, 'You don't date one Nader sister, you date all of us.'"

Seconds later, Nader claims, "He's a cheater and I have all that proof."

We also hear a voiceover from Savchenko in the trailer, with him saying, "Just sad how people spread lies and rumors to promote their new reality show."

Savchenko has previously denied cheating on Nader.

The couple met and started dating while competing on DWTS in September 2024, but split a week after their elimination. They got back together shortly after, but a source told PEOPLE on April 7 that they had broken up for good and that Nader had suspected Savchenko of cheating on her.

In a statement obtained by PEOPLE at the time, Savchenko said he was "surprised to learn" about their split through the news and claimed that Nader had texted him on April 6 asking to speak, but that she had yet to reply to him. He said the last time he saw Nader was on March 31 and April 1, when he filmed an episode of her reality show in New York during a break from the DWTS tour.

Later that month, on April 22, Savchenko told E! News, "I'm not a cheater. I'm actually a family guy. I'm a relationship guy. I'm not a f--- boy who goes around and goes on all these dates. I'm not even on dating apps."

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Love Thy Nader premieres Tuesday, Aug. 26, on Freeform, and the entire season will be available to stream on Hulu the next day. Dancing with the Stars season 34 airs this fall on ABC.