Kenneth Walker III exited the Seattle Seahawks' 27-23 win over the Los Angeles Rams in the first half with an injured ankle and did not return.

Walker left the game after carrying three times for 36 yards. The rookie's right ankle was examined extensively on the sideline before he was ruled out early in the third quarter.

"I can't tell you because it's not an ankle sprain," Pete Carroll said after the game. "He jammed it, so I'm not quite sure of what to tell you right now. We don't know."