MLB commissioner Rob Manfred cited an "unscientific system" that could motivate him to bring strike zone replay to the majors ...

Once a call has been challenged, an automated replay system ... like that idea. The MLB says it conducted polls of fans, players and coaches, and a fully automated strike zone was consistently ...

For the first time in MLB, ball-tracking technology is making some ball-strike decisions during ... 32 seconds to complete, the replay showed the pitch missed the zone badly, perhaps by six ...

Instant replay ... This would likely be the system Major League Baseball would adopt. However, there is still always the possibility that the automated strike zone only remains in the minors.

The league expanded the replay challenge rules ... about the umpires' struggles with accurately calling the strike zone, MLB is testing its compromise to "robot umps" for the first time this ...