At issue is the time-honored baseball tradition of stealing signs.
Although he has 40 saves, closer isn't listening to his manager.
Red Sox pitcher also was fined, as was Yankees Manager Joe Girardi.
Yankees manager continues to demand punishment for Red Sox starter.
Ryan Dempster plunks embattled third baseman, who gets revenge with a homer as Yankees are fired up.
Investigation could bring 100-game suspension for third baseman.