Coach Ron Rivera said initial tests revealed a sprained left knee for Kelvin Benjamin.
Kelvin Benjamin was carted off the practice field Wednesday with an apparent left knee injury.
Kelvin Benjamin caught three passes for 36 yards and a touchdown in the Panthers preseason opener.
Kelvin Benjamin says his hamstrings are 100 percent as Panthers camp opens.
Kelvin Benjamin is down to his playing weight.
Coach Ron Rivera expects Kelvin Benjamin (hamstrings) to be a full go when training camp opens next week.
Panthers GM Dave Gettleman described reports of Kelvin Benjamin reporting to offseason workouts 8-9 pounds overweight as, "much ado about nothing."
The Charlotte Observer reports Kelvin Benjamin reported to Panthers spring workouts "8-9 pounds overweight."
Kelvin Benjamin (hamstring) resumed practicing Thursday.
Panthers coach Ron Rivera expects Kelvin Benjamin (hamstring) back at practice this week.
Kelvin Benjamin remains sidelined at Panthers minicamp by a hamstring injury.
Kelvin Benjamin is missing OTA sessions with a strained hamstring.
Kelvin Benjamin admitted he got mentally fatigued during his rookie year.
Kelvin Benjamin caught seven passes for 75 yards with two touchdowns in Saturday's 31-17 Divisional Round loss at Seattle.