If you are looking for something in the medical field: A really cool college major that is sports related could be kinesiology. Kinesiologists typically work in the sports industry as a personal trainer for athletes. These are the people you see with athletes helping them stretch, observing them when they are injured, teaching them different stretches for warmups, the list goes on! I know many peers who are athletes in college and pursue this major due to the fact that they used to be in your exact shoes! The feedback I hear from them is great as they say they love the major.
If you are looking for something in the business field: Another college major is working in sports marketing. This major would consist of doing things such as being a talent manager for an athlete, working under an organization for a professional sports team, anything involved in professional sports marketing. You could also major in a general field such as Communications (my current major) and this college major could definitely help you land a career in this industry.