The 2009-2010 NFHS (high school) rule book is ambiguous on this. Unless I'm really missing something, denying an obvious goal scoring opportunity is not included as one of the offenses for which a player can be sent off (red card) in Rule 12, Section 8, Article 3. However, the rule book includes a comparison between the rules of NFHS, NCAA, & FIFA. In this comparison on page 77, the NFHS Ejection- Reasons (Red Card) include the following: "foul against an opponent who is moving toward goal with an obvious opportunity to score". I have no idea why this was excluded from the list of Red Card offenses in Rule 12.
