LAS VEGAS — Ronda Rousey climbed on the scale and glared into the distance while the crowd roared. Moments later, she directed that withering gaze at UFC bantamweight champion Amanda Nunes, who stared right back.

Rousey then left the stage at T-Mobile Arena on Thursday without a word to Nunes or the thousands gathered at the weigh-in on the eve of UFC 207.

Rousey (12-1) was arguably the most dominant MMA fighter in the young sport's history until she lost her belt 13 months ago in a stunning knockout. Rousey is determined to earn her redemption Friday night with her skills, not her words.

Her comeback fight against Nunes (13-4) is the main event in the UFC's traditional end-of-the-year show.

But nobody is certain which Rousey will show up in the cage. Will it be the confident judo genius who thrashed a series of overmatched opponents? Or will it be the shaky, distracted veteran who got stopped by Holly Holm's head kick in Australia last year?

“I'm not sure how it's going to be, but she could do a lot of things,” Nunes said. “Nobody knows, but I know I'm going to be ready. We will see about her.”

Rousey has largely refused to promote her fight, even declining to speak to the UFC's broadcast team.

Instead, Rousey expressed her thanks in an Instagram post moments after the weigh-in.

“Looking forward to proving you all right tomorrow,” Rousey said. “It's going to be the happiest New Year ever.”