Patriots RB Stevan Ridley suffered a right knee injury in practice on Thursday. He watched the rest of the workout on the sidelines and then walked to the locker room under his own power, so it doesn't seem like a serious problem. But any missed time could give RB Shane Vereen a chance to make up ground. He's reportedly already been doing so over the past week. We don't think the pecking order in the Pats' backfield is settled yet. It's a situation worth monitoring closely over the next dew weeks.