Women in baseball 36 strikeouts. In 2008, Eri Yoshida, at 16 years old, became Japan's first professional female baseball player to play in a men's league by signing a professional contract with a new Japanese independent league. In April 2010, she signed a contract with the Chico Outlaws, becoming the first woman to play professionally in two countries. In 2009, Justine Siegal became the first female coach of a men's professional baseball team. In 2011, she was the first woman to throw batting practice to an MLB team, the Cleveland Indians at spring training. She also threw BP to the Oakland Athletics, Tampa
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