Whenever I stand or play sports for a long time my ankles have a burning sensation in the front, what's going on?

1. There are many issues to work through, including shoewear, foot position, relevant anatomy, and type and duration of exercise. If both feet are affected, then your shoes may be too tight or laced in the wrong area, or their could be an anatomical variant contributing to symptoms. A period of rest may help. Otherwise, it would be best to be evaluated for an exam.