When Yu Darvish imploded in the World Series, there was immediate speculation about the cause could have been. Was he injured? Was former Rangers teammate Carlos Beltran sharing his secrets with the Astros? Was Darvish tipping his pitches somehow? The last option seemed like the most likely, and now we know exactly how he was doing it. Sports Illustrated’s Tom Verducci spoke with an Astros player who explained how they knew what was coming. According to a Houston player, the Astros often knew what Darvish was about to throw by the way he brought the ball into his glove in the set position. (Darvish pitches exclusively out of the stretch.) The player said it worked like this: Darvish holds the ball at his side when he gets the sign from the catcher. Whether he re-grips or not as he brings the ball into his glove was the tip-off whether he was going to throw a slider/cutter or a fastball.