Chargers' Joshua Palmer: Not practicing Thursday

Palmer (concussion) didn't participate in Thursday's practice, Daniel Popper of The Athletic reports.

Palmer also missed Wednesday's session and now has one more chance to practice ahead of Sunday's game against the Broncos. The same goes for fellow wideout Keenan Allen (heel), who along with Palmer was spotted doing some agility work and running off to the side with trainers Thursday. If neither receiver is cleared to play Week 17, the Chargers would be left with Quentin Johnston, Alex Erickson and Jalen Guyton as their presumptive top three wideouts.