In early testing, umpires wore ear buds and would hear “ball” or “strike,” then relay that to players and fans with traditional hand signals.The challenge system adds a wrinkle.

In early testing, umpires wore ear buds and would hear “ball” or “strike,” then relay that to players and fans with traditional hand signals. Stewart's performance in Tuesday's win over Villanova was ...

In early testing, umpires wore ear buds and would hear “ball” or “strike,” then relay that to players and fans with traditional hand signals. The challenge system adds a wrinkle.

That applies to umpires too, apparently ... Wolcott initially started to signal safe, stopped himself to show an out call and then went back to the safe call. Hey, he got it right — that's ...

In early testing, umpires wore ear buds and would hear “ball” or “strike,” then relay that to players and fans with traditional hand signals. The challenge system adds a wrinkle.

If you have tuned in for any of the spring training games thus far, you've probably noticed that MLB has started testing an automated strike zone. And the best part about the system may be that ...

To signal a challenge, the player will tap the ... But this isn’t the first robot umpires have been used in professional baseball. The league began experimenting with ABS for all balls and ...