According to a person familiar with the situation, the Yankees’ coaches were upset with a whistle coming from the Houston dugout in Game 1 of the ALCS and believed it was part of a sign-stealing program the Astros have long been suspected of using at home.
The person confirmed an angry Yankees dugout let the Astros dugout know the team wasn’t happy with the attempt to pilfer signs. One thing was for certain: The whistling didn’t help the Astros hitters, who got three hits and were blanked, 7-0.
A person with an AL West team said the whistling is just one way the Astros convey swiped signs at Minute Maid Park.