This is all speculation on my part but In Todd Haleys statement to the press he stated "We're fighting through some things with some guys you've been aware of." According to Adam Teicher and other reporters Ryan O'Callaghan, Alex Magee and Jerheme Urban were all accounted for. They were seen in the locker room after practice. Cameron Sheffield was not mentioned. Cameron was the most recent injury that we were aware of with the Head/Neck injury and was kept for only one night prior to returning to Kansas City. It's very possible in my mind that he had a relapse of something concerning that injury. I sincerely hope it was nothing like that and something as simple as one of the injured players getting a shoestring caught in the bicycle chain. Jerheme Urban was wearing a hefty brace that would indicate a broken hand or wrist by the way. So now we know something about what is up with Urban.