Quote:

Basic Definition of dangerous play (the part in quotes is right from 08-09 FIFA rule book):
Any action by a player that is unsafe to him or another player, in the judgment of the referee. When contact is made, the referee will consider whether it was "careless, reckless or there was excessive force".



Remember that the FIFA Laws of the Game do not apply to high school games.

The wording in the NFHS Soccer Rules Book is as follows:
"A player shall not participate in dangerous play, which is an act an official considers likely to cause injury to self or another player (opponent or teammate)."

Same idea, just worded differently. No mention of contact in the NFHS rules though.