How to become a sports medicine physician?

I’ll be heading off to college this fall (freshman) and am really interested in becoming a sports medicine physician after I graduate.

But I’m really confused on how I become one and what steps I have to take to get there.

Like what kind of courses should I take in college, what should I major in, do I have to go to a medical school after like doctors do, and any other requirements that I would need to become a sports medicine physician.