Sign of times: MLB gives OK to electronic pitch calling - NBC Sports
Ian Happ Gets 3 Hits as Cubs Beat Brewers 5-4 on Opening Day – NBC Chicago
Chicago arts venues weigh in on competing against Cubs in World Series – Orlando Sentinel
Sign stealing - Wikipedia
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And That Happened: Texas Rangers vs. Detroit Tigers: April 10, 1984 - NBC Sports
Mets give mixed reviews of new PitchCom device for pitch signals
Mets give mixed reviews of new PitchCom device for pitch signals
MLB to allow electronic pitch-signaling devices in 2022 season to prevent sign-stealing
Houston Astros sign stealing scandal - Wikipedia
As MLB moves toward using 'robot umpire,' getting strike/ball calls right is the goal
Thrills of World Baseball Classic reminds us what Gary Bettman wrought