I rolled my ankle about a month ago. i have a tournament this week. i practiced on it today. it didn't hurt when i ran on it. now it does a small bit.

Strengthen peroneals: Lateral movement may be a problem - may need ankle brace or taping short-term. Long-term you need to increase the coordination of your peroneal muscles to prevent re-injury. You do this by flexing your foot up toward shin and turning out toward the 5th toe side of your body repeatedly. Practice this movement throughout the day. Good luck w/ tourney!

Protect it: Would be best to protect it by wearing an ankle brace or having it taped.