Martin laid out in the end zone on Seattle's second-to-last play of the game and landed hard on his chest. Because of the location of the injury, Martin was not able to return to Seattle with the team and remains under watch in Arizona.
"It was pretty serious," Carroll said of the injury. "He'll be there until at least (Tuesday) if not the next day. We're going to have to take care of Charly and bring him back. It's going to be a couple of weeks for him."
The third-year receiver had one catch for 15 yards in the contest. He was targeted just two times.