John Isner,  University of Georgia 

“For me, to tell you the truth, I never even thought about going pro [after high school],” Isner said. “If I didn’t go to college, I really don’t even know if I would be playing tennis now. A lot of players leave high school and go straight to the pros, and they don’t make it and don’t have success, so they burn out after two or three years. For sure, if I hadn’t played for four years at Georgia, I don’t think I would be where I am now.”