It's going tibia okay!

Try these exercise to help improve ankle strength and flexibility. 

Foot Pilates on Wall
Start this exercise by lying on your back with both feet  against a wall and your knees bent to 90 degrees. Your feet should be about hip width apart.
From this starting position you will complete 4 different movements:
1. Keep the heels touching the wall and sweep your toes outward. When you come to the end point, lift toes off the wall and return to starting position.
2. Keep the heels touching the wall and sweep toes inwards. When you come to the end point, lift toes off the wall and return to starting position.
3. Keep your toes touching the wall and sweep your heels outward. When you come to the end point, lift toes off the wall and return to starting position.
4. Keep your toes touching the wall and sweep your heels inward. When you come to the end point, lift toes off the wall and return to starting position.

Repeat each movement 10 times for 2 sets. If your foot is cramping up repeat each movement 5 times for 3-4 sets.

Calf Raises
Begin this exercise with the balls of your feet on a surface slightly above ground level.  Have something nearby to hold onto for balance. Smoothly push upwards on your toes, raising the body straight up. Avoid rocking your body forward/backwards to assist the movement. Slowly lower back down with smooth, controlled movement. Repeat 10-15 times for 2-3 sets.

Standing Resistance Balance
Start by standing and holding resistance band in both hands with the opposite end anchored to something firm beside you. Tighten your abdominal muscles and lift the outside leg up. Pull the resistance band at chest height out in front of your body and maintain a stable position. Hold for 10-15 seconds and repeat 5-10 times per leg. 

Cross Hop
Tape a cross on the floor. Hop with one foot working in multiple directions (side to side, front and back and diagonally). Do patter for 20-30 seconds and repeat 2-3 times per foot.