Claressa Shields is stepping into the ring with swagger and determination as she prepares for a historic heavyweight world title fight this Sunday. Known as the GWOAT—Greatest Woman of All Time—Shields is looking to add another incredible achievement to her already decorated career: becoming an undisputed champion in three different weight classes.

Fighting in her hometown of Flint, Michigan, Shields is going head-to-head with Danielle Perkins, who also boasts an undefeated record. But Shields isn’t worried. “If Danielle don’t keep her hands up, she’s gonna get put on her back pockets,” she quipped during an interview.

At 29, Shields has an impressive 15-0 professional record and has already won world titles in five divisions. This fight, broadcast live on DAZN, is a chance to cement her legacy even further. Flint holds special meaning for Shields, as it’s the setting of her biopic The Fire Inside, which highlighted her inspiring journey in boxing.

Shields’ confidence isn’t just limited to her current opponent. She even joked about taking on YouTuber-turned-boxer Jake Paul, saying, “Jake Paul cannot beat me in a fight.” Her bold attitude and skill have made her a trailblazer in women’s boxing, proving it’s not just a man’s sport.

With the crowd behind her and history in her sights, Shields is ready to show the world—once again—why she’s one of the best to ever step into the ring. “I feel like the world is ready for me,” she said. And come Sunday, she’ll have the chance to prove it.