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During the offseason, the big health concern for Raiders defensive end Mario Edwards was the neck injury that forced him to injured reserve at the end of the 2015 season.

Edwards was eventually cleared to return to action, but his stay on the field this summer was a brief one. Edwards injured his hip in the team’s first preseason game on August 12 and was given a 4-6 week timeline to return to action. That may have been an overly optimistic read on his status.

Raiders coach Jack Del Rio told Vic Tafur of the San Francisco Chronicle that Edwards could go on injured reserve following the cut to 53 players on Saturday with the intent of bringing him back as the one player designated for return. A rule change this season allows teams to make that designation after the player has been on injured reserve for six weeks, at which point he’s eligible to return to practice although he can’t play until eight weeks have passed.

Edwards had 42 tackles, two sacks and three forced fumbles during his rookie season.