The Panthers placed Sims (undisclosed) on the reserve/PUP list Friday, Joe Person of The Athletic reports.
Sims had previously been placed on the active/PUP list, and in moving to the reserve/PUP list, he now won't count as part of the Panthers' 90-man roster. Carolina will have until cut-down day to determine if the wideout will be activated or remain on the reserve/PUP list, in which case he'd need to sit out the first four games of the campaign. Sims had been looking to vie for a roster spot in training camp after signing with Carolina on a reserve/future contract in January.