Steve Smith was carted off the field with a hamstring injury during Saturday's afternoon practice, reports Pat Yasinskas of the Charlotte Observer.
The extent of the injury is not known at this time.
Updates to come
GM Marty Hurney believes it's a strain, the AP is reporting.
"It seems like he probably strained it," Hurney said. "He's done this before in training camp."
John Clayton of ESPN is reporting that Smith's injury is not as severe as the one he had in 2003, and to expect him to miss no more than two or three weeks.