Ketlen Vieira has a point to prove at UFC 307.

The UFC veteran once again enters a fight looking to earn a shot at the bantamweight title with a victory, and feels it may finally come if she beats two-time Olympic gold medalist Kayla Harrison this Saturday in Salt Lake City, especially with all the hype surrounding the former PFL champion.

“I think she underestimates me,” Vieira said in an interview with MMA Fighting. “When she says she’s better than me in all areas, she’s underestimating me. She’s a very good athlete, she’s a Olympic medalist for a reason, but she’s not better than me in everything because she’s completely dependent on taking the fight to the ground. We haven’t seen her trade on the feet for three rounds. Maybe she can do that in the future, but I don’t see that right now.”

Harrison said during the UFC 307 media day on Wednesday she believes she “can beat all three girls in the same night,” referring to her upcoming opponent and both UFC 307 co-headliners, Raquel Pennington and Julianna Peña.

Harrison has only fought once inside the octagon, dominating and finishing Holm with a rear-naked choke. Vieira also holds a win over Holm, as well as Miesha Tate, Cat Zingano and Sara McMann.

“I’m used to this already,” Vieira said. “People always say I’m the underdog and I’m still here, beating the best. I’ve been here many times before. When I fought McMann the winner would fight for the belt, and I won. When I fought Cat Zingano, who was the only woman to beat Amanda [Nunes in the UFC], the winner would go for the belt, and I won. I beat two other ex-champions, Miesha and Holly. I’m used to big fights. People have short memory and continue to underestimate me.”

Vieira sees the Harrison clash as a “semifinal” to determine the next contender in the 135-pound division, and expects Pennington to successfully defend her throne Saturday against Peña.

“It’s a great fight for me,” Vieira said of Harrison. “I’m more complete than Kayla, I have more tools. I have good ground game and good judo as well. You can’t learn to defend judo takedowns in judo, but that’s something I’ve done my entire life. And I’m also evolving on the feet. I’m getting more complete every day. If I have to grapple with her, I will. If I have to trade with her, I will. She can’t do the same because she completely dependent on her ground game.”