Eri Yoshida to play for the of the Kansai Independent Baseball League. Yoshida made her professional baseball debut at the Osaka Dome in the opening game of the Kansai Independent Baseball League on March 26, 2009 in front of 11,592 fans. She faced two batters, walking the first and striking out the second in a 5–0 win over the . She appeared in 11 games for the Kobe 9 Cruise and moved on after the season to focus on advancing up the pro ranks. She appeared in a one-inning battle against the top hitters of the Hiroshima Carp on November 24, 2009.
Eri Yoshida On December 15, 2009 the Arizona Winter League announced that they had reached an agreement to allow Yoshida to play in their thirty-five game season. The league served to showcase players who had been overlooked by major league teams in the draft by giving them a chance to play in front of professional scouts. On February 12, 2010, Yoshida got her first win in Arizona Winter League play, throwing four shut-out innings in a 5–0 win for her team, the Yuma Scorpions, versus Team Canada of the Arizona Winter League. On February 28, 2010, she was offered a contract to