Hypothetical question brought on by what just happened: 2 strike count no one on. Pitcher throws a wild pitch, batter appears to check. Catcher gets a new ball and then asks the 1st base ump whether he checked. Ump says he swings. Is this a live ball similar to a dropped 3rd? Does the catcher have to go and get the original ball or can he use the new ball the ump gave him to tag the batter out?