Palmer (concussion) didn't practice Thursday, Brianna Dix of the Buccaneers' official site reports.
Palmer is on track to miss a second straight game due to the concussion he suffered Week 4 while filling in for Jalen McMillan (hamstring) as the No. 3 receiver. McMillan, meanwhile, was a limited practice participant Wednesday and Thursday, hinting at a chance to return this Sunday at New Orleans.