Paige VanZant was in pretty good spirits Thursday night ... despite the beating she took from Rose Namajunas at UFC Fight Night -- smiling and laughing through the pain at her news conference.
The UFC star fought her ass off ... but in the end, Rose was just too much for the 21-year-old.
Afterward, VanZant kept a positive attitude -- though admitted," I wanted to win ... I'm sad, but I'm fine."
As for the winner, Rose was also smiling after the fight ... with barely a scratch on her body.