Eri Yoshida Eri Yoshida Yoshida was born in Yokohama, Kanagawa, Japan where, she taught herself how to throw the knuckleball at the age of 14 after watching Major League Baseball pitcher Tim Wakefield on television. She stands tall, and her pitches have been clocked at , while her knuckleball pitch velocity measures around 50 mph. As a high-school sophomore at Kawasaki-kita Senior High School in Kawasaki, she threw the pitch well enough to earn a place on the school's baseball team. Her success caused a sensation in the national media, who dubbed her the "Knuckle Princess". In 2008, she signed a contract
National Tennis League National Tennis League National Tennis Leagues (NTL) was a tour for professional male tennis players established in 1967 by George MacCall. In 1970 it was sold to the World Championship Tennis (WCT), a competing professional tennis league run by Lamar Hunt. The National Tennis League (NTL) was formed by former U.S. Davis Cup captain George MacCall in 1967, as a governing body to a US Professional tennis tour. It was key in moving tennis from a mostly amateur sport to a professional sport. In 1968 Billie Jean King became the first woman of the Open Era to sign a pro