Palmer (concussion) was a limited participant in Wednesday's practice.
Palmer sat out the Chargers' Week 17 loss to Denver with a concussion, but his ability to open Week 18 prep with a limited practice suggests he's made some incremental progress through the five-step protocol for head injuries. He'll likely need to put in a full practice by the end of the week in addition to gaining clearance from an independent neurologist in order to have a chance at playing in Sunday's season finale versus Kansas City. If he clears the protocol, Palmer could serve as the No. 1 wideout for quarterback Easton Stick, as Keenan Allen (heel) has missed the Chargers' last three games and doesn't appear to be trending toward a return in Week 18 after he was sidelined for Wednesday's practice.