Buccaneers running back Doug Martin showed some struggles and was bothered by an apparent knee injury in a Week 1 loss to the Panthers on Sunday.

Making his first appearance since having shoulder surgery, Martin was limited to 3 yards on five carries in the first half. He sustained the injury early in the third quarter but was kept out for most of the game, likely as a precaution.

Martin did not get a handoff and was targeted only once after the injury. Bobby Rainey filled in for him late in the game. Martin was held to nine carries for 9 yards and one grab for a gain of 7 yards while being targeted twice in a 20-14 defeat.

Martin could pop up on the injury report next week. The Bucs will host the Rams in Week 2.

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