Blake M. Treinen (/ˈtraɪnɛn/, born June 30, 1988) is an American professional baseball pitcher for the Oakland Athletics of Major League Baseball (MLB). He played in MLB from 2014 through 2017, when he was traded to Oakland. Treinen was an All-Star in 2018.\n', '
Treinen attended Osage City High School in Osage City, Kansas. He played for the school\'s baseball team as a freshman, but quit during his sophomore year as he developed prediabetes. He returned to the team in his junior year, with his fastball reaching 79 miles per hour (127 km/h). He enrolled at Baker University, where he played college baseball for the Baker Wildcats in the National Association of Intercollegiate Athletics in 2007. He transferred to the University of Arkansas in 2008, but did not play for their baseball team. He attempted to walk on to the Arkansas Razorbacks baseball team in the National Collegiate Athleti…
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