Yoshinori Tateyama (建山 義紀, Tateyama Yoshinori, born December 26, 1975) is a Japanese former professional baseball pitcher.\n', '

On November 30, 2010, Tateyama signed as a free agent with the Texas Rangers. After starting 2011 in the minor leagues, he was called up to the Rangers on May 23, 2011, and made his major league debut on May 24, 2011. He struck out Carlos Quentin out swinging for his first major league strikeout.\n', '

Koji Uehara was his teammate in high school. In that time, Tateyama was an ace pitcher and Uehara was an outfielder. In the 2011–2012 offseason, the Rangers signed Japan\'s best starting pitcher Yu Darvish to a 5-year deal. Tateyama and Darvish were previously teammates for 5 seasons on the Hokkaido Nippon-Ham Fighters.\n', '

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