MLB umpires becoming harder to ignore, defend
Will controversial World Series calls accelerate MLB's move to robot umpires? - The Washington Post
MLB umpires get support from players in 'perfectly imperfect' game
Invasion of the Robot Umpires
Did a robot ump blow an obvious ball/strike call? Some MLB players have thoughts
Manager ejected during heated argument after terrible umpire call
Weekend Debate: Should the MLB Use Robo Umps? - Sports Illustrated Pittsburgh Pirates News, Analysis and More
Robot umps take large step forward to MLB as Triple-A adopts them
Close Call Sports & Umpire Ejection Fantasy League: RoboUmp's Odd Strike Zone Gets AFL Game Called Early