Yankees manager Joe Girardi said his team needs to use multiple signs even when there is no one on base because the Blue Jays "could be" stealing signs using illegal methods at Rogers Centre. "Sometimes we have inclinations that certain things might be happening in certain ballparks and we are aware of it and we try to protect our signs," Girardi said. On Friday, Girardi ordered catcher Russell Martin to put down multiple signs even when there was no one on base. The catcher and starter Freddy Garcia believe it threw off the pitcher's rhythm. Martin believed the Blue Jays were stealing signs from second on Thursday, when Bartolo Colon lasted only two-thirds of an inning. "If you feel it is coming from somewhere else besides a player on the field, then I do have issues with it," Girardi said. "There are ballparks where you need to protect your signs. I don't want to really get into it because I'm not 100 percent sure about anything."