Wikipedia - Bjorn Fratangelo
Bjorn Fratangelo ( bee-ORN frə-TAN-jə-loh; born July 19, 1993) is an American inactive professional tennis player and coach.
He won the boys' singles title at the 2011 French Open defeating Dominic Thiem. Fratangelo was only the second American win the event, following John McEnroe in 1977.