I was playing basketball on saturday and stepped on someone's foot. heard and felt a pop in the arch of my foot. now the outside of my foot and toes a?

Foot an ankle issus: See an orthopedic doctor to check this. Good luck and feel better

Possibly Not Good.: Hearing and feeling a popping sound during elevated activity is not good. Could possibly indicate a partial tear, tear or fracture. If on the outside of the foot, it could indicate a 5th met fracture or peroneii tendon damage. You would be better of starting the RICE protocol and see a specialist for an evaluation.