Not sure what occured with this swing, foul, homerun, ??? ?
My personal opinion is he swung to early, and is hitting the ball when he is nearly at extension. ?The front arm barring at contact is proof of this. ?The hands/wrists releasing like they are, are also an example of being out in front of the pitch. ?On a ball that had traveled deeper into the zone, the hands would have stayed back, and you would have seen this action, hands releasing, later in the swing, just slightly before contact.