Genuine question, but why ? (every time I think I understand the handball rule it turns out I don’t and yet when I was growing up it all seemed straightforward).
Carragher was saying his hand was in a natural position, but it was perpendicular to his body. The only reason for that can be to instinctively touch the ball away.
One of the most straightforward penalty decisions of the season so far. Unless pulling someone down by their shirt is now deemed within the laws of the game.