Nikki Bella and Ronda Rousey are building the hype for their match at WWE's first-ever all women's PPV by trading jabs on social media ahead of the October 28 PPV event.

Rousey fired off the first IG post today, sharing a photo of what happened during last week's episode of Monday Night Raw, when Nikki and Brie Bella turned on her, setting up the current feud. She captioned the photo:

"No exaggeration these pictures were taken only minutes apart. That was my mistake. I should have known better than to trust the backstabbing Bellas.... Don’t miss #RAW tonight cause @thenikkibella and @thebriebella are gunna learn betraying me was the stupidest thing they ever could have done. And considering their extensive record of idiocy, that’s really saying something #DoNothingBellas."

Rousey previously told TMZ Sports that Nikki and her sister Brie were "untrustworthy bitches," and referred to the Bella Twins as "Do Nothing Bellas" (a twist on her famous "Do Nothing Bitches" line) on social media. 

In further promotion of their upcoming match, Nikki also took to instagram to share some thoughts about "The Baddest Woman On The Planet." Bella's IG post reads:

"In response to your post @rondarousey You may think I’m a “DNB” but that’s because you been here for what maybe 20 RAW’s? I’ve been here for almost 12 years. Since day one I have wanted change for the women at WWE. This “DNB” has been in the ring with Victoria, Natalya, Krissy Vaine, Shantelle Malawski, Taryn Terrell, Brooke Adams, Michelle McCool, Layla, Vickie Guerrero, Melina, Mickie James, Maria, Katie Lea, Jillian Hall, Maryse, Alicia Fox, Gail Kim, Candice Michelle, Beth Phoenix, Rosa Mendes, Eve Torres, Kelly Kelly, Awesome Kong, Naomi, Cameron, Eva Marie, Jojo, Summer Rae, Kaitlyn, Tamina, AJ Lee, Paige, Charlotte, Sasha Banks, Becky Lynch, Carmella, Alexa Bliss, Asuka, Riott Squad and more. I defended a championship for 301 days. I have executive produced and starred in two reality shows, one about women’s wrestling, while on the road wrestling. I even broke my neck for this business. So if you want to talk about a “DNB” look at yourself, because in this Evolution of women’s wrestling, you’re the “DNB”

The two superstars will go head-to-head for the first time at the company's inaugural all-women's pay-per-view event, titled Evolution, on October 28.