Started playing tennis at age 9. His younger brother also plays tennis. He won the 1987 Orange Bowl doubles title (w/Koves) and reached the doubles final at the 1988 French Open Juniors (w/Ivanisevic), losing to Stoltenberg-Woodbridge. Also reached the semifinal at the Wimbledon Juniors (losing to the same duo). Caratti turned professional in 1989. He represented his native country at the 1992 Summer Olympics in Barcelona, where he was defeated in the first round by France's Guy Forget. The right-hander reached his highest singles ATP-ranking on 22 July 1991, when he became World No. 26.