Douglas (concussion) took part in the Patriots' unofficial practice session Tuesday, Mike Reiss of ESPN.com reports.
New England won't release its first Week 7 practice report until Wednesday, but Douglas' involvement in Tuesday's session suggests that he's made at least some progress through the NFL's concussion protocol. While Douglas and JuJu Smith-Schuster sat out the Patriots' Week 6 loss to the Raiders while recovering from their head injuries, Tyquan Thornton filled in as the team's No. 3 receiver behind DeVante Parker and Kendrick Bourne.