Nick Bollettieri has been one of the most influential people in tennis. In 1978, a year after becoming a USPTA member, he founded the Nick Bollettieri Tennis Academy (now known as IMG Academy) in Bradenton, Fla., which was the first full-time tennis boarding school to combine intense training on the court with a custom-designed academic curriculum. His approach helped 10 players reach No. 1 in the world: Andre Agassi, Boris Becker, Jim Courier, Martina Hingis, Jelena Jankovic, Marcelo Rios, Monica Seles, Maria Sharapova and Venus and Serena Williams.