TEMPE, Ariz. -- Arizona Cardinals coach Bruce Arians sounded optimistic that defensive end Calais Campbell, who is recovering from what the coach labeled a "bruised spine," will be able to play Thursday night against the Seattle Seahawks.
"He looks like he is cleared to play," Arians said during his weekly segment on SiriusXM NFL Radio on Tuesday night. "He is fine. He bounced back into the team meeting room [Monday morning], and the guys all jumped up and were excited to see him."
Campbell was limited in Tuesday's walk-through but was working with the first-team defense during the open portion of practice.
Campbell went down with less than five minutes remaining in the fourth quarter Sunday in San Francisco after trying to strip a fumble from 49ers running back Frank Gore. Doctors and trainers attended to Campbell, bracing his head while emergency responders strapped the 6-foot-8 player to a stretcher and wheeled him to an ambulance. He was taken to Stanford Hospital, where he underwent tests including an MRI and a CT scan. Later Sunday, he flew back to Arizona on a plane provided by team president Michael Bidwill.
Campbell, who underwent more tests Monday afternoon, isn't concerned about returning to the field.
"I feel pretty good now. Football's my life, I love it. I'm definitely looking forward to strapping it up and playing again," Campbell said. "Football is a fun game. If you play it correctly, you can limit your injuries. I'm not really scared as long as I play the right way."
Arians talked about seeing Campbell strapped to the gurney after he went down.
"You never want to go out there as coach and watch the doctors put that collar on a guy's neck and put him on a stretcher," Arians said. "When I was out there, I felt more relieved that he had feeling in both arms and legs. It was more of a short-term stinger, body stinger."