Palmer (calf/elbow) did not practice Thursday.
Palmer played through a knee issue during the Chargers' win over the Panthers in Week 2, but he's now missed consecutive practices while being listed with two new injuries. He was at least present for Thursday's session, with Daniel Popper of The Athletic noting that Palmer was working out off to the side. Palmer will still need to upgrade to at least limited practice participation Friday in the Chargers' final session of the week to have a chance at playing Sunday in Pittsburgh.