You'll see a new Automated Challenge System during Mariners games next season

SEATTLE — Next year at T-Mobile Park, watching the Mariners will look a little different.

Major League Baseball (MLB) is rolling out an automated ball-strike challenge system.

Here's how it works: When a batter, pitcher or catcher thinks the home plate umpire got it wrong, they can challenge the call by simply tapping their head. Within seconds, a series of cameras around the field analyzes exactly where the pitch crossed the plate in relation to the strike zone. The result pops up on the big screen for everyone to see.

"I think it's going to add a really exciting part of the game to fans watching in the stadium, but also on TV," broadcaster for the Tacoma Rainiers, Andy Helwig, said.

Helwig has watched the system evolve over the past couple of seasons as it was tested in the minors.