Zavala (hamstring) was spotted participating in Tuesday's practice, Mike Kaye of The Charlotte Observer reports.
Zavala played every snap of Carolina's preseason defeat to New England, Kassidy Hill and Darin Gantt of the team's official site report.
The Panthers placed Zavala (knee) on injured reserve Wednesday, Darin Gantt of the team's official site reports.
Zavala may be out for the rest of the season after suffering a knee injury in Sunday's loss to the Titans, Jeremy Fowler of ESPN.com reports.
Zavala (knee) will not return to Sunday's game against the Titans, Mike Kaye of The Charlotte Observer reports.
Zavala (knee) is questionable to return to Sunday's game against the Titans, Darin Gantt of the Panthers' official site reports.
Zavala (neck) has been ruled out ahead of Sunday's game against Miami.
Zavala suffered a "really bad stinger" Sunday against the Lions, according to head coach Frank Reich, David Newton of ESPN.com reports.
Zavala is alert and has movement in all of his extremities after being taken to a Detroit hospital as a result of suffering a neck injury in Sunday's contest against the Lions, Joe Person of The Athletic reports.
Zavala was carted off the field during Sunday's game against the Lions after suffering a neck injury in the first quarter, Colton Pouncy of The Athletic reports. He won't return to the contest.