Buccaneers head coach Todd Bowles said that McMillan (hamstring) has been ruled out for Thursday's game against the Falcons, Brianna Dix of the Buccaneers' official site reports.
Tampa Bay's receiver depth will be tested Week 5, as McMillan will be joined in street clothes Thursday by Trey Palmer (concussion). Kameron Johnson and Sterling Shepard are likely to serve as the main backup options behind Mike Evans and Chris Godwin.