The Yankees thought Doug Fister's mouthguard was a secret listening device - SB Nation
| SB Nation | The Yankees thought Doug Fister's mouthguard was a secret listening device SB Nation The Red Sox cheated by stealing signs and relaying said signs through Apple Watches. There is no avoiding that truth: Boston even admitted this is something they were doing. However, the Sox also feel like the Yankees are just kind of picking on them. Stealing signs with Apple Watch not exactly shocking Boston Red Sox Used Apple Watches to Steal Signs Against Yankees |