I can't lift my right foot. Anyone have any ideas?

I'm 19 years old, perfectly healthy except for a hereditary high systolic number. I've played soccer for number of years and now play at the collegiate level. I've been recovering from a broken ankle, and just began my regular shot drills today. I shot around 200 goals and felt fine, but about 45 minutes later I went to get up to walk and I have no control over my right foot (my kicking foot). I can extend my foot fine (making a straight line with my shin) but cannot pull my foot up to form an angle with my leg. There is no pain at all. I've had many injuries but never anything quite like this. What could be causing this, what would be a treatment, how long should I rest, and is this something I should get checked out by my trainer or an ortho?