Huge. Petersen is the most unique player in the ACC. There is no one who can do what she does, her defense has gotten better this season, and she seems to have picked up another gear in terms of pace. We have now lost 3 defenders: Lizzy Sieracky for the season. Claire Constant for at least the past two games. And now Petersen. At one point Sunday we had Ashlynn Serepca and Alexa Spaanstra playing as outside DBs. Now Serepca has always been listed on the team roster as a D/F (as she was when she was recruited) and she has logged maybe 90 minutes over the past two years as a RB, but that is not a lineup that is going to stand up to the FSUs and UNCs of the world. Constant did participate in warmups, but afterwards her ankle was iced and then in a boot. Apparently she wasn't moving that well, either, but she is certainly in a fitness race for Friday. Injuries suck.