Palmer was carted off the practice field with an unspecified leg injury Monday, Erik Bacharach of the Tennessean reports.
Palmer was reportedly unable to place any weight on his left leg. The 28-year-old is the latest member of the Titans linebacking corps to suffer an injury, with Brian Orakpo and rookie Rashaan Evans having been sidelined for the past few weeks. Palmer saw most of his snaps on special teams last year, and he'd been battling for a reserve position in training camp. Until more information about the injury is released, Palmer should be considered questionable.