MLB’s next ABS-like challenge system is in the works to clear up one of its most ‘ambiguous’ rules

As much as baseball has evolved throughout its long history, the basic framework of the major league game has been written in the rulebook since the turn of the century.

The mound stands at 60 feet, 6 inches from the plate. The bases are anchored 90 feet apart. The regulation game lasts nine innings (minus that COVID blip).

But if you ask 10 people one particular question about the sport, you might get 10 different responses.

What counts as a swing?