Chark visited the Chargers on Thursday, Ian Rapoport of NFL Network reports.
Chark (foot) practiced fully Thursday, Darin Gantt of the Panthers' official site reports.
Chark (foot) was a limited practice participant Wednesday, David Newton of ESPN.com reports.
Chark secured six of eight targets for 98 yards and two touchdowns in the Panthers' 33-30 loss to the Packers on Sunday. He also committed a fumble that was recovered by Carolina.
Chark caught two of four targets for 26 yards in Sunday's 28-6 loss to the Saints.
Chark played 44 offensive snaps yet was not targeted once in Sunday's 33-10 loss to the Cowboys.
Chark (elbow) was a full participant in Wednesday's practice.
Chark (elbow) is listed as inactive Thursday at Chicago, Mike Kaye of The Charlotte Observer reports.
Chark (elbow) is listed as doubtful for Thursday's game against the Bears.
Chark (elbow) was listed as a non-participant on Tuesday's estimated injury report, Mike Kaye of The Charlotte Observer reports.