网页PROTOCOL DOCTOR: Robert F. LaPrade, M.D., Assistant Professor, University of Minnesota Sports Medicine Institute, University of Minnesota GOALS: 1. Grade I sprain returns in 3-5 days. 2. Grade II sprain returns in 5-10 days. 3. Grade III sprain returns in 14-21 days. 4. The worst thing to do for an ankle sprain is not to use it. It is important