MLB Hitters May Regret a Future in Which Robot Umpires Rule the Game
WATCH: Marlins pitcher loses it after umpire calls three balks in same inning, Mattingly also tossed
MLB umpire forgets to rule safe or out on close play
MLB working to clarify home plate collision rule - Los Angeles Times
The Wesleyan Argus MLB Implements Controversial Rule Changes to Improve the Game
Whether to Play During Weather?
Baseball: After player input, MLB allows some pitch clock delays
Hey MLB, learn from the NFL's referee debacle before baseball loses its integrity – New York Daily News
Interference? Not on this play, says ump, to Astros' dismay
MLB umpire Bill Miller appeared to drop a f-bomb on Nationals broadcast
MLB makes new home plate collision rule official— calls it 'experimental