It depends on what you want to highlight in your athlete profiles. You might just want to collect contact details and basic information, like age and location. But a typical player profile includes physical attributes, too, such as height. Plus, any general health concerns or injuries.
The questions you use will depend on whether your profiles will be for internal or external use. If you're posting the profile on your website, you might want to ask for career information and achievements. And if it's only going to be used internally, you can gather more personal details like training notes.