San Francisco Giants ace Madison Bumgarner struck out Chicago Cubs outfielder Jason Heyward on Thursday in the fourth inning with a nasty pitch that caught Heyward looking. What came next had everyone watching the game scratching their heads. Heyward appeared to say something to Bumgarner, but he was really looking past the pitcher to teammate Dexter Fowler, who was on second base. Heyward later said he was asking Fowler whether the pitch was a strike or not, but Bumgarner and catcher Buster Posey momentarily misunderstood and thought Heyward was talking to Bumgarner. [ Sign up for Fantasy Baseball | Play for $40K | Expert rankings | Mock draft ] The umpire immediately positioned himself in front of Heyward as Bumgarner approached. The Giants quickly seemed to accept Heyward's explanation and the situation ended, though the whole thing left the Giants under the impression the Cubs were trying to steal signs and had a miscommunication in doing so. Chicago went on to win 16-14. "You might want to be a little more discreet about that if you want to do that kind of thing," Bumgarner told reporters after the game . Heyward took responsibility for the confusion and insisted there was no...