Carolina placed Smith (illness) on the reserve/COVID-19 list Thursday, Darin Gantt of the Panthers' official site reports.
Smith was a candidate to step in as Carolina's No. 3 receiver for Sunday's season finale in Tampa Bay after Terrace Marshall (foot) was placed on injured reserve Wednesday, but the move to the reserve/COVID-19 list will likely deny Smith the opportunity. With both Smith and Marshall on track to sit out Week 18, Brandon Zylstra now looks like the top option to join starters DJ Moore and Robby Anderson (quadriceps) in three-receiver sets.