VIDEO : Khloe Kardashian Says Brother Rob Is Undergoing a 'Great Transformation'

According to his sister, Rob Kardashian has already undergone a "great transformation". The 28-year-old sock designer was diagnosed with diabetes late last year, but sister Khloé is feeling positive for him in the New Year. She told E! News: '2016 is gonna be a really positive great year. I think I've seen such a great transformation just mentally right now. So I hope that sticks. I'm always praying and rooting for Rob.