If you have a good impression on him, you can extend with him in this respect. Talk about what kind of sports you like. You can talk to him and ask him what kind of sports he likes.
Then continue to extend and talk about each other's hobbies, which is ok. Put together in this way, the topic opens up and the relationship between the two people is getting closer and closer.
So I think if a girl asks what sports you like, or some hobbies about yourself, she should just be nice to you.
He wants to contact you, but sometimes he doesn't know how to contact you, so he asks your permission by asking about your sports preferences. I know which way you like.