A look at the major injuries to key players in the NFL, which appear to be mostly ankle or hamstring related:

* Oakland Raiders running back Darren McFadden suffered a high ankle sprain in the second quarter against the Tampa Bay Buccaneers. The San Francisco Chronicle reported during the game that X-rays were negative, according to a press box announcement. However, there was no further update on his condition.

* Pittsburgh Steelers wide receiver Antonio Brown also suffered a high ankle sprain. He told USA Today Sports he will return for  Monday night’s game against the Kansas City Chiefs despite the severity of such injuries.

* Teammate and All-Pro linebacker Clay Matthews left the same game with a hamstring injury. The Journal-Sentinel reported the injury concerns the Packers greatly because its the same injury that has plagued him since his rookie season..

* The biggest name to suffer a head injury was wide receiver Santana Moss of the Washington Redskins against the Carolina Panthers. The Bleacher Report noted he was still being evaluated Sunday night.

* And the Washington Post reported that Redskins teammate and quarterback Robert Griffin III had X-rays taken on his ribs after the game, but they were negative. He never missed a play because of the injury.

– Bill Bradley, contributing editor