Where was the red card?

Women's varsity soccer match: BYU vs. New Mexico. How this brute wasn't shown a red is beyond me. Knowingly fouling at the top of the box to prevent a dangerous shot- absolutely warranted. Punching an opponent in the back- a little less understandable. Pulling someone to the ground by her ponytail- are you kidding me?! The only rational explanation for this behaviour is that the offender was in desperate search of some air time on ESPN. Either that or her wrestling skills trump her soccer playing ability.