A complete rupture is debilitating, may cause immense pain, and necessitates fast medical/surgical intervention to stay away from long term tissue destruction.  Ankle sprains can be connected to bone fractures (typically for the ankle or the metatarsal with the fifth toe), personal injury to the ankle ligaments, or tendon tears. https://www.theorthopaedicandpainpractice.com/the-definitive-guide-to-diagnosing-and-treating-ankle-pain-in-singapore/