@hardknockshbo did a segment on Sam Darnold a couple of weeks ago about his spiral being the best in the NFL. I have been working with Sam since he was 16 years old. I’ve probably spent more time with him on the field than I have anyone else. Here is what makes his throwing motion so unique and why he is able to throw the ball as well as he does. #SamDarnold #HardKnocks #Seahawks