By Rob Maaddi

The Associated Press

YORK, Pa. — “Robot umpires” have arrived.

The independent Atlantic League became the first American professional baseball league to let a computer call balls and strikes Wednesday night at its All-Star Game. Plate umpire Brian deBrauwere wore an earpiece connected to an iPhone in his pocket and relayed the call upon receiving it from a TrackMan computer system that uses Doppler radar.

He crouched in his normal position behind the catcher and signaled balls and strikes.

“Until we can trust this system 100 percent, I still have to go back there with the intention of getting a pitch correct because if the system fails, it doesn’t pick a pitch up or if it registers a pitch that’s a foot and a half off the plate as a strike, I have to be prepared to correct that,” deBrauwere said before the game.

It did not appear that deBrauwere had any delay receiving the calls at first, but players noticed a big difference.

“One time I already had caught the ball back from the catcher and he signaled strike,” said pitcher Daryl Thompson, who did not realize the technology was being used until after he disagreed with a call.

Infielder L.J. Mazzilli said a few times hitters who struck out lingered an extra second or so in the batter’s box waiting on a called third strike.

“The future is crazy but it’s cool to see the direction of baseball,” Mazzilli said.

The umpires have the ability to override the computer, which considers a pitch a strike when the ball bounces and then crosses plate in the strike zone. TrackMan also does not evaluate checked swings.

Former big leaguer Kirk Nieuwenhuis does not like the idea of giving umps veto power.

“If the umpire still has discretion, it defeats the purpose,” said Nieuwenhuis, who batted .221 with 31 homers in 978 at-bats with the Mets, Angels and Brewers.

About 45 minutes before the first pitch, the public address announcer directed fans to look up at the black screen hanging off the face of the upper level behind the plate and joked that they could blame the computer for any disagreements over calls.

“This is an exciting night for MLB, the Atlantic League, baseball generally,” said Morgan Sword, MLB’s senior vice president of economics and operations. “This idea has been around for a long time and it’s the first time it’s been brought to life in a comprehensive way.”

The experiment with radar-tracking technology to call balls and strikes was originally expected to begin at the start of the season but experienced some delays.

Atlantic League president Rick White said it is going to be implemented leaguewide over the next few weeks.

“After that, we’re relatively confident that’s it’s going to spread through organized baseball,” White said. “We’re very excited about what this portends not only for our league but for the future of baseball. What we know is technology can help umpires be more accurate and we’re committed to that. We think the Atlantic League is being a pioneer for all of the sport.”

Sword said MLB has not received much pushback from umpires.

“One of our focuses is not to replace the umpire,” Sword said. “In fact, we’re trying to empower the umpire with technology. The home plate umpire has a lot more to do than call balls and strikes and he’s going to be asked to do all of that. We’re in touch with our umpires union and this is the first step of the process.”

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