Football player turned mathematician. He's always been a math buff, but when he decided to quit football for Math I was surprised. It was during my college days when I heard of this guy.
I guess he made sufficient money and lost interest in football or had more interest in math than football or money.
Nevertheless, he is now a PhD student graduating in Spring 2021. I will wait for the days he is a professor and has lectures on Vector Calc or DiffyQ. HA, maybe he'll have more advanced topics!