Jackson (undisclosed) played 25 defensive snaps during Friday's preseason game against the Bills, and made three tackles (two solo).
Jackson was carted off the field during practice July 27, but seems to have returned to full health. Even though he was able to make a return to the field, the Arkansas product still faces an outside shot to make the team.
Jackson was carted off the practice field Saturday with an undisclosed injury, Brendan Marks of The Charlotte Observer reports.
Jackson signed on with the Panthers earlier in the week, so it's a tough first impression for the young defensive tackle. The specifics of the injury are currently unclear.