'I had four billion tigers looking at me': what's it like to take a World Cup penalty?

Have you ever thought about what it would be like to take a spot kick in a World Cup penalty shootout? What were Roberto Donadoni, Franco Baresi and Robert Baggio, for example, picturing when they stepped forward at Italia 90 and USA 94? The fear etched on the faces of teammates left at the halfway line? The pep talk at the end of extra time? Or 4 billi…