Expanded instant replay has been officially approved for the 2014 season, MLB announced. The owners, players’ union, and umpires’ union all had to sign off on the new system before it could be implemented. Replays will be conducted at the league’s central office in New York, not on-site by the umpires.
The system is explained here. Here’s the short version: Managers get two challenges per game, but they lose the second challenge if the first is unsuccessful. Kinda silly, but whatever. The crew chief can elect to review any play from the seventh inning on without a manager’s challenge. The full list of reviewable plays are right here and notice that the neighborhood play at second base is not reviewable. That could have created some headaches. Clubs are now allowed to show any and all replays on the ballpark scoreboard, even those that were not reviewed. That’s neat. It’s not a perfect system but it is progress.