The replay enhancement is proving to be a big hit with fans.

Similar to regular instant replay, the goal of the ABS challenge system is to correct the most egregious missed calls, though we will inevitably see some ticky-tack replays as well. More than a few ...

For more than a century, baseball’s home plate umpires have called a ball or a strike based on interpretation of a vague, loosely defined strike zone. The subjective calls decided at-bats, games, ...

For the first time in MLB history, batters, catchers and pitchers will be able to appeal the fraction-of-an-inch calls that ...