* Dwayne "The Rock" Johnson: While he's famous for professional wrestling, it's widely known that his wrestling background started in high school. He often mentions it as a formative experience.
* John Cena: Similar to The Rock, Cena's professional wrestling career is well-documented, but he also began wrestling in high school.
* Kurt Angle: Another professional wrestling star, Angle's incredible athletic background included high school wrestling. His collegiate wrestling success at Penn State is better known, but his high school career was crucial to his development.
It's important to note that many athletes who went on to success in other sports (football, etc.) often wrestled in high school as well. The rigorous nature of wrestling makes it excellent cross-training. However, confirming specific high school participation for every famous athlete is a significant research task. The examples above are among the more readily verifiable cases.