Major League Baseball is undergoing a revolution with the introduction of the ABS challenge system for balls and strikes. This system, which allows players to challenge umpires' calls, has put more ...

Add Yahoo as a preferred source to see more of our stories on Google. Cincinnati Reds infielder Eugenio Suárez is seen reacting during at-bat during a March 28 game against the Boston Red Sox. Home ...

UmpScorecards data ranks Jen Pawol 89th out of 91 MLB umpires in ball and strike accuracy, with viral videos highlighting ...

The MLB partnered with T-Mobile to develop the Automated Ball-Strike (ABS) challenge system, and I got to experience it from an umpire's perspective.

Umpire Jen Pawol makes a call during the Atlanta Braves and Miami Marlins game. Concern over the status of human umpires has risen ever since the inclusion of the ABS challenge system this season.

Alan Porter will be the umpire crew chief and call balls and strikes for Tuesday night's All-Star Game at Philadelphia's Citizens Bank Park. The 48-year-old made his major league debut in 2010, joined ...

Michael Spencer is an anchor for CBS News Colorado at 5, 6 and 10 p.m. Share your story ideas with him by sending an email to yourreporter@cbs.com. One of the most recognizable faces in Colorado high ...