Umpire Scott Kennedy lay motionless on the ground after taking a baseball to the face during the Alabama-Vanderbilt game.

The ABS challenge system has been one of the best stories in baseball so far this season, and Jeff Passan has been one of the ...

Players can challenge ball-strike calls now, but it may have come at a cost for viewers.

Umpire Ryan Additon watches as a call is challenged using MLB's ABS challenge system during the third inning of a spring training baseball game between the Miami Marlins and the Houston Astros ...

Major League Baseball's new automated ball-strike challenge system is an early hit among fans, social media users, and the players benefiting from the sport's latest change. Who would be against a ...

During the MLB Umpire Prospect Development Camp, each umpire's performance and abilities are evaluated by the Major League Baseball Umpire Development staff, while candidates learn the rules in the ...

Nobody likes getting called out at work — especially when doing so happens on a JumboTron in front of tens of thousands of folks. Some MLB umpires are “stewing” about the new Automated Ball-Strike ...

NEW YORK — Robot umpires are coming to the big leagues this year. The Automated Ball/Strike System will be introduced in the form of a challenge system in which the human umpire makes each call, which ...