Umpires first began calling both balls and strikes way back in 1864, and baseballers have been arguing about those calls ever ...

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Thirteen spring stadiums and over 60% of Cactus and Grapefruit League games will feature an automated ball-strike (ABS) challenge system.

This spring training will introduce a new element to the action: for the first time, MLB will employ the automated ball-strike system (ABS for short) during big-league contests. ABS is ...