AceShowbiz - "Selling Sunset" star Chrishell Stause sparked speculation of a beef with Tom Sandoval of "Vanderpump Rules" when she shared an Instagram post promoting the upcoming season of their reality competition show, "The Traitors."

Stause's post included a trailer and her own portrait, along with official cast photos of all the other contestants, including Dolores Catania, Dorinda Medley, and Gabby Windey. Conspicuously absent, however, was Sandoval's photo.

Fans took to the comments section, speculating that Stause's omission was intentional and indicative of tensions between them. Some suggested that Stause was supporting Sandoval's ex-girlfriend, Ariana Madix, following the "Scandoval" cheating drama that unfolded on "Vanderpump Rules" Season 10.

"Now I KNOW Chrishell is team Ariana. icons supporting icons," commented one fan, while another wrote, "Omg if you blocked off Sandoval's face in the last slide...ICONIC BEHAVIOR."

Stause has previously expressed support for Madix, tweeting a photo with her and captioning it, "I love when we can all agree on something." The tweet has since been deleted.

It is unclear if Stause purposely left Sandoval out of her post. Representatives for both Stause and Sandoval have not yet commented on the speculation.

The third season of "Traitors" will feature 19 other pop culture personalities, including "Real Housewives" stars, "Big Brother" alums, and "Survivor" competitors. It premieres on Peacock on January 9.