What happened: Major League Baseball's automated ball-strike challenge system was invoked again and upheld the home-plate umpire's original call, according to MLB.com. The review followed the sport's replay-challenge process, in which a pitch call can be contested and checked against the automated tracking system.

Why it matters: The result adds to a growing set of test cases for the still-developing ABS challenge system, which has both upheld and overturned close calls in earlier reviews this season, including a similar ball call MLB upheld in June. Each additional challenge builds the sample MLB is using to evaluate the system's reliability.

What to watch: MLB is expected to keep running ABS challenges through the rest of the season as it evaluates the system.