More at the link.
For decades, spying on another team has been as much a part of the gamesmanship of baseball as brushback pitches and hard slides. The Red Sox have apparently added a modern and illicit twist: They used an Apple Watch to gain an advantage against the Yankees and other teams.
Investigators for Major League Baseball have determined that the Boston Red Sox, who are in first place in the American League East and likely headed to the playoffs, executed a scheme to illicitly steal hand signals from opponents catchers in games against the second-place Yankees and other teams, according to several people briefed on the matter.
The baseball inquiry began about two weeks ago, after the Yankees general manager, Brian Cashman, filed a detailed complaint with the commissioners office that included video the Yankees shot of the Red Sox dugout during a three-game series in Boston last month.
The Yankees, who had long been suspicious of the Red Sox stealing catchers signs in Fenway Park, contended the video showed a member of the Red Sox training staff looking at his Apple Watch in the dugout and then relaying a message to players, who may have then been able to use the information to know the type of pitch that was going to be thrown, according to the people familiar with the case.
Baseball investigators corroborated the Yankees claims based on video the commissioners office uses for instant replay and broadcasts, the people said. The commissioners office then confronted the Red Sox, who admitted that their trainers had received signals from video replay personnel and then relayed that information to some players an operation that had been in place for at least several weeks.
The Red Sox responded in kind on Tuesday, filing a complaint against the Yankees, claiming that the team uses a camera from its television network, YES, exclusively to steal signs during games.