We sat down with Hector Berrios, who shares his remarkable journey and insights into fixing the pitching mechanics of Aroldis Chapman. He discusses his experience in the Phillies organization, his current endeavors, and the transformative techniques he employed to help Chapman regain his form. Join us as Berrios delves into the importance of body movements, hip rotation, balance, and tension in pitching. 0:00 Introduction 3:50 Hector Berrios working with the Dodgers and other big names 10:12 Learning to read and interpret metrics 18:15 Hector Berrios meeting Aroldis Chapman 20:56 Every drill has a purpose 23:50 Aroldis Chapman Coiling the back leg 31:20 The involvement of the whole body 35:06 How to apply pressure from the hip into the knee 37:51 The pelvis is what drives the knee down to the ground 40:31 Towel Drill 53:30 Fixing the arm path in the delivery 1:08:04 The idea of throwing hard, easy 1:21:04 Addressing confidence from the mental side 1:30:45 The importance of creating a deeper hinge 1:38:04 Keeping mechanical anchors in your routine