The very first question one has to ask is what kind of turf were those people in those pictures playing on.
American Football players typically have noting covering their arms, with exceptions and they slide across the artificial grass/turf fields all the time and rarely do I ever see any abrasions such as that. I suspect those girls/guys were probably playing on the few remaining old style turf fields which are typically only used by field hockey teams or cheap knock off artificial grass fields, not made by the primary companies. Seriously do you think NFL'ers would constantly rate some FieldTurf/AstroTurf gameday grass fields above some natural turf fields if they left abrasions like that on their arms and elsewhere?
Oh, and even real grass can leave abrasions on people.
Plus, why the eff do some people think that the women's soccer program at K-State should fly out of the gates with some awesome stadium, unless somebody steps up to pay for it?