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Robot Umpires in Baseball: A Terrible Idea
Amid Major Rule Changes, MLB Catchers Wary of Looming Robo-Umps – NBC Connecticut
Seattle Mariners Top 31 Prospects
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What do robo-umps, challenge system mean for catchers? Some coaches are concerned
Tanner Swanson posted on LinkedIn
What do robo-umps, challenge system mean for catchers? Some coaches are concerned
MLB catchers wary of looming robo umps amid rules changes