After an x-ray and a nurse checking it, it was decide that i strained my ATFL(anterior talofibular ligament). I am up and walking, but the full recovery should take a few weeks. Apparently the ATFL is the main tendon down the side of your leg to your foot. The pop i heard was the tendon sliding around my ankle. But as you can see from the picture, i had a little reason from caution after i rolled it off the side of my skateboard! Good to go.