I think that soccer has rules tht define what is fair and what is foul play. Foul play should always be penalized no matter whether you are playing against girls or boys. The refs should pay attention to the rules only. On the other hand, DCA, when you are playing against someone a lot smaller than you and you deliberately try to hurt them, even in a technically legal tackle, you are not being a good sport. If you're really good you could figure a way to play solid defense and still not hurt someone by hammering them. This applies to smaller players of both sexes. Why be a bully?