[One of many board hoppers on this question]
The thing I wondered about this play is what you'd do if the defense did this on purpose [I realize that'd be awfully tough in realtime.] But hit a guy at the one and drive him into the endzone. Realize that you're in the endzone and then let go. Can the runner do anything at this point to regain his forward progress or does he now have to attempt to advance out of the endzone?
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SEXYCHIKU