Hypothetical: when is a debut not a debut?

[Peter_Spaeth]

Originally Posted by bravos4evr

if they are going to replay the game entirely than no, you didn't because you would not have registered an official plate appearance.

Technically I suppose that's right, but I would still say under the hypothetical above that yes the guy played in the major leagues so it counts. By the way how is it treated if, say, a batter injures himself swinging at strike one and can't continue? Is he out (hard to believe), or does a new batter substitute, inheriting the count? If the latter (which has to be right) then the batter who swung at a pitch doesn't have an official plate appearance either. Yet that player clearly played in an official game.