MLB switching to challenge system full-time for robot umpires experiment
Memphis Redbirds have installed several cameras that are used for the league’s automated ball-strike (ABS) system. The system automatically adjusts the vertical strike zone based on each player’s height. (Mark Weber/The Daily Memphian file)
Baseball’s top minor leagues, including the International League the Memphis Redbirds play in, are switching to a challenge system full-time for their test of robot umpires.
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