Saw a hitter, catcher, or pitcher tap their helmet after a pitch and wondered what just happened. Here’s a clear guide to MLB ...

PHOENIX — For more than 150 years, the game of baseball has relied on humans behind home plate to call balls and strikes. This spring, for the first time in Major League history, players will be able ...

Plus, how successful were challenges during spring training?

Only the batter, pitcher or catcher can challenge an umpire’s ball or strike call with the ABS system. (GeekWire Photo / Kurt Schlosser) Human umpires will remain behind the plate calling balls and ...

MLB is putting a spotlight on the next generation of players this week with a series of games called the Spring Breakout that feature rosters of franchises’ top prospects. And because the games are ...

This year, Major League Baseball tested an automated balls and strikes challenge system in spring training games, allowing hitters, pitchers and catchers to challenge ball or strike calls they thought ...