Ankle Pain When Standing on the Balls Of my Foot

Hello,

I injured my right ankle playing tennis about 8 months ago. It never swelled up but it definitely hurt for awhile for weeks after. Today it hurts on the outside of my ankle when I stand on the inside portion(big toe ball). Strangely though if I stand bull legged and stand on the outside balls of my foot I feel no pain. Anyone have this or know how to treat this?Maybe a certain brace?

Thank you