Dawg With Style, figure Gurley wearing the boot and returning to the field says a lot about the injury. If it was ligament damage, no way he comes back out and walks around.
Sprains are sometimes worse than other injuries, hard to heal, especially around the ankle and foot. Weight bearing joints.
Gurley needs to stay on the sideline until the ankle heals, none of the "speedy" return stuff that he might try to do. Gurley has a great future ahead, he is a smart young man, just has to use those "smarts".