The Steelers are slated to trade Johnson to the Panthers in exchange for Donte Jackson and a pick swap, Tom Pelissero of NFL Network reports.
Johnson (knee) doesn't carry an injury designation for Saturday's game against the Colts after being listed as a full practice participant Thursday, Brooke Pryor of ESPN.com reports.
Johnson (knee) didn't practice Wednesday, Teresa Varley of the Steelers' official site reports.
Johnson (illness) doesn't carry an injury designation ahead of Sunday's game against the Cardinals, Teresa Varley of the Steelers' official site reports.
Johnson didn't participate in Thursday's practice due to an illness, Joe Rutter of the Pittsburgh Tribune-Review reports.
Johnson recorded two receptions on eight targets for 16 yards in Sunday's 13-10 loss to the Browns.
Johnson (thumb) was a full practice participant Thursday, Teresa Varley of the Steelers' official site reports.
Johnson (thumb) participated in Thursday's practice, Alan Saunders of SteelersNow.com reports.
Johnson (thumb) didn't practice Wednesday, Teresa Varley of the Steelers' official site reports.
Johnson caught one of four targets for 17 yards in Sunday's 23-19 win over the Packers.