Firkser (knee) wasn't spotted at Thursday's practice and is slated to go down as a non-participant on the Titans' report, John Glennon of BroadwaySportsMedia.com reports.
Even though he was inactive for last week's win over the Seahawks, Firkser has seemingly taken a step back in his recovery from the knee injury. He was able to practice in a limited fashion last Wednesday and Thursday, but he's now sat out each of the Titans' subsequent three sessions. At this stage, Firkser looks unlikely to show enough improvement to suit up this weekend against the Colts, but the Titans will make an official ruling on his status with the release of Friday's injury report. Expect Geoff Swaim and MyCole Pruitt to split work at tight end if Firkser is out for another game.