Legette was carted off the practice field Tuesday after suffering an apparent upper body injury, Steve Reed of the Associated Press reports.
The Panthers already lost rookie wideout Chris Brazzell to a season-ending LCL tear, so a prolonged absence for Legette would really thin out competition for the No. 3 receiver role. John Metchie, David Moore and Jimmy Horn would become the favorites for first-team snaps alongside locked-in starters Tetairoa McMillan and Jalen Coker.