San Francisco Giants interested in Tomoyuki Sugano - McCovey Chronicles
Elite Underdogs: A Portrait of the University of Tokyo Baseball Team | Nippon.com
A team of College players from Japan are visiting my local team the Adelaide Giants in a preseason series. Their pitchers are using Junko Balls, a rubber coated baseball! : r/baseball
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World Baseball Softball Confederation
Japan's Standardized Baseballs Are Popular With Pitchers - The New York Times
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