LAS VEGAS – After her spectacular rise to the top of the UFC’s women’s bantamweight and featherweight divisions, dual world champion Amanda Nunes in the best form of her career as she prepares to defend her UFC bantamweight title at UFC 239. Nunes (17-4 MMA, 10-1 UFC) will take on former UFC bantamweight champion Holly Holm  in the co-main event at T-Mobile Arena on Saturday night, and the 31-year-old brimmed with confidence after working out for the fans at the MGM Grand. “After the best fight of my career, I feel like I’m ready for everything,” she said. “Holly’s a tough fight, but I feel like I’m way in front of her in this game and I will prove it on Saturday