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 ...

It's not quite robo umpires but hitters and pitchers can challenge balls and strikes calls by umpires in certain stadiums ...

There are no immediate plans to introduce the system in regular-season games yet. Questions remain about how large a role it ...

The new era of robot umpires is making its presence felt, and what better way to start than with preseason games?

Major league teams will use a challenge system during spring training. It was popular Thursday. “I love this,” one player yelled.

COMING SOON: The Automated Ball-Strike Challenge System (ABS) presented by @TMobile will be used during Spring Training games ...

Thursday's Cactus League opener, a 12-4 Cubs win, saw the first use of an automatic ball-strike challenge system, commonly ...

The Automated Ball-Strike System (ABS) challenge got its first test run in big league Spring Training on Thursday afternoon, ...

The "automated ball-strike challenge system" or ABS will be active during 60% of spring training games this year, allowing pitchers, catchers and batters to call for automated ball-strike call reviews ...

The automated ball-strike challenge system made its MLB debut Thursday in the Dodgers-Cubs spring training game. It's an early hit.