We sure wouldn't want to get in the ring with Jon "Bones" Jones!
The AB-mazing athlete credits his new-and-improved physique to powerlifting, a workout he only picked up this summer. He captioned the incredible pic:
"Started powerlifting June 1, 2015. In just about seven months of training four days a week, my body has made a complete transformation."
We'll say! Lookin' good, man!
The 28-year-old appears to have taken up Crossfit as part of his regimen, because he also used the photo-sharing site to give shout-outs to trainers at one New Mexico facility, writing: