The Cardinals are going to work toward rebounding from a lopsided defeat to the Panthers, but now face an extra burden -- figuring out who is healthy enough to play quarterback.

It was uncertain as of Monday who will take snaps under center Sunday in Seattle, the first divisional matchup between the Cards and Seahawks this year.

Colt McCoy, who suffered a pectoral injury in the third quarter Sunday, is day-to-day, coach Kliff Kingsbury said. The injury bothered McCoy enough to leave the game and undergo examinations by team doctors.

"Hopefully, over the next couple of days, he feels better and can operate this week during practice," Kingsbury said. "But we'll have to see how that goes."

Normally, McCoy's status wouldn't be as crucial -- but with starter Kyler Murray still a question with his bad ankle, McCoy becomes important.

As much as the organization would love to have their Pro Bowl signal-caller back, Kingsbury reiterated being smart with Murray's return remains the priority.

It's understandable, after Murray's 2020 season. Murray suffered a shoulder injury during the second half of the season and decided to play through it. But he did not mirror the player who garnered MVP consideration early in the year as the Cardinals faded out of the playoff picture.

The Cardinals have the second-best record in the NFC and seem destined for a postseason run. It's reasonable to understand the big picture plan regarding Murray, no matter how much the offense suffers without his services in the short-term. The Cardinals have a bye week after playing the Seahawks.

"That was a nagging situation last year," Kingsbury said. "(Kyler) played through it and kind of toughed it out. But he probably wasn't able to be 100 percent the back of the season. So, this year we want to make sure he can feel as good as possible.

"We have the bye coming up, and hopefully, that gives him more time to recover and hit that home stretch. If he can play Sunday, he will play, but we want to be smart with him."

If Murray is not ready to return, and McCoy is not healthy enough to start come Sunday, third-stringer Chris Streveler would be the guy.

Streveler completed 6-of-9 passes for 36 yards in his first extended action since the season finale in Los Angeles last year. There were good and bad moments in his showing, but overall, Kingsbury saw improvement.

"I thought he made some nice plays," Kingsbury said. "He had a couple plays he'd like to have back too, but he definitely progressed from last year."