I think it was his left one

https://www.golfdigest.com/story/mesa-california-dobson-ranch-golf-injury-lawsuit-testicle-rupture

Other than this guy's bad luck Dobson Ranch is a pretty fun place.

Legal president requires the attorney to prove there was negligence on the part of whoever is being sued.

Such as a golfer purposely hitting balls toward someone or failing to yell fore. Or a course with unsafe maintenance or features. Pretty hard to do if it was a simple accident.

On the bright side of things, he has a 50% reduced chance of getting testicular cancer. That ought to be worth something.