I would say that a booking means he doesn't do it again. A keeper can be sent off in a shootout and then has to be replaced by an outfield player who finished the game.
Not sure its been done before though
Generally I thought he was good but lost control of the shootout.
Weghorst should not have been near March ahead of his pen.
From the 4th pen onwards, de gea was up by the pen spot , treading on or around it. Utd took their last 4 pens about 6 inches back from the spot.
Since the world cup...