The Chargers activated Palmer (knee) from injured reserve Tuesday.
Palmer has missed the Chargers' last six games, but after turning in three limited practices last week and then being estimated as a full participant on Monday's practice report, he looks set to return to the lineup Thursday against the Raiders. In his last five appearances before landing on IR with a right knee sprain, Palmer made a fantasy splash with 19 catches for 360 yards and a touchdown, but he could struggle to replicate that production down the stretch. The Chargers placed franchise signal-caller Justin Herbert (finger) on injured reserve Tuesday, so Palmer will instead be on the receiving end of passes from Easton Stick, who will make his first career start Thursday.