The batter, pitcher or catcher simply tap their helmet or cap to challenge — but they only have two seconds. If they challenge, the pitch graphic appears on the scoreboard and broadcast, and the ...

This year's MLB spring training could prove more consequential than any in years past as MLB will experiment with ABS, the Automated Ball-Strike Challenge System, to ensure the home plate umpire gets ...

What to know about robot umpires, automated ball-strike testing, challenges at 2025 MLB spring training Cactus League, Grapefruit League games.