My "prediction": Tolkien was a wrestler

Off topic, but still a prediction in that I don't know the answer:  I think Tolkien wrestled in his youth. When you read his description of armed combat, it's pretty simple and somewhat vague, but when it becomes unarmed combat, suddenly every single motion gets described and punching takes a distant second place to grappling.

Maybe it's out there somewhere, but I've looked around and not read much about Tolkien's athleticism - some brief mention of tennis and rugby at Oxford, but that's about it.

Anyway, I always thought his description of physical combat demonstrated the saying, write what you know. Maybe sometime I'll find out if my prediction's right.