For those not watching, DeSean Jackson was in the clear at the 20-yard line. He gets his steps together and does a somersault from just outside the 5. His hands both hit between the 1 and the goal line, and he fumbles the ball. They ruled him down at the 1, but marked off a 15-yard penalty. The West scored 2 plays later to take the lead.
I wouldn't let him back in the game, as a lesson to all the kids there, and every kid watching on TV.