Chiefs EDGE Frank Clark left Saturday's win over the Raiders with a groin injury and did not return. He was ruled out early in the 2nd half. That's generally a bad sign for the severity of an injury. Of course, K.C. was already way up at that point in the game and had no reason to push Clark back into action. The victory also gives him the bye week to heal up before their playoff opener. We'll watch for further details on the injury.