A 2017 letter from Commissioner Rob Manfred confirmed the Yankees' illicit use of electronic devices in 2015 and parts of 2016, which cost the team a $100,000 fine.
Sign stealing has long been a part of baseball strategy. When a batter is hitting, his teammates carefully watch a catcher's fingers or body language to figure out what pitch is about to be thrown. That is all fair play as long as teams do not use any electronic devices, such as cameras or computers, to facilitate the process.
During past seasons — according to a newly released, partially redacted letter from Major League Baseball Commissioner Rob Manfred to Yankees General Manager Brian Cashman sent in 2017 — the Yankees used electronic devices to decipher and share opposing teams' signs. The letter came after the Yankees had accused the Boston Red Sox of using a similar process.
"The Yankees' use of the dugout phone to relay information about an opposing Club's signs during the 2015 season, and part of the 2016 season, constitutes a material violation of the Replay Review Regulations," Manfred wrote to Cashman.
"By using the phone in the video review room to instantaneously transmit information regarding signs to the dugout in violation of the Regulations, the Yankees were able to provide real-time information to their players regarding an opposing Club's sign sequence — the same objective of the Red Sox's scheme that was the subject of the Yankees' complaint."
The reason the Yankees were punished in a less severe way (a $100,000 fine earmarked for a charitable cause) than the Houston Astros and the Boston Red Sox, World Series-winning teams that were dealt suspensions, fines, a loss of draft picks and public scorn? Those teams continued their sign-stealing ways after MLB began cracking down on it and instituted clear terms of punishment.
The contents of that MLB letter to the Yankees — which became public on Tuesday, and were first reported by SNY, ahead of an expected unsealing in court — weren't exactly new or surprising. Paranoia about opponents stealing signs between pitchers and catchers has existed throughout baseball history, but the influx of technology in the game had introduced new fears.
New ways to skirt the rules emerged in 2014, when MLB expanded its use of instant replay review, which established rooms near each team's dugout with live video feeds to help coaches decide whether or not to challenge a play. Players were also allowed to visit these rooms during games to consult video of their pitching or hitting. But any use of technology to decode or relay opponents' signs during a game was still prohibited.