If in five years of strenuous exercise, four days a week, for ~30 weeks a year, along with significant exercise for 20 of the other 22 weeks a year, I never once experienced anything like it, I'd say that the odds are as close to zero as they could meaningfully be.

Not to mention riding a bicycle as my only mode of transportation other than foot for ten years before I had a driver's license.

I enjoyed tackling people. I did not enjoy the exercise itself and would not have done it if I could have skipped right to the games without having done all that other stuff.