Thompson (lower leg) is participating during voluntary workouts Tuesday, Mike Kaye of The Charlotte Observer reports.
Thompson (lower leg) was placed on injured reserve Tuesday, Darin Gantt of the Panthers' official site reports.
Panthers head coach Frank Reich said Tuesday that Thompson is expected to miss the rest of the season after undergoing surgery to repair a fractured fibula suffered in Monday's 20-17 loss to the Saints, Joe Person of The Athletic reports.
Thompson agreed Saturday to re-work the remainder of his two-year contract with the Panthers, Ian Rapoport of NFL Network reports.
Thompson made a career-high 135 tackles (78 solo) while playing all 17 games in the 2022 season.
Thompson finished with 12 tackles (five solo) in Sunday's 30-24 loss to the Buccaneers.
Thompson recorded six tackles (five solo) in Sunday's 37-23 win over Detroit.
Thompson finished with 12 tackles (seven solo) in Sunday's 24-16 loss to the Steelers.
Thompson recorded nine tackles (six solo) in Sunday's 30-24 win over the Seahawks.
Thompson recorded six tackles (five solo) during Sunday's 23-10 win against the Broncos.