Pruitt (knee) didn't participate in Wednesday's practice, Jim Wyatt of the Titans' official site reports.
Pruitt sat out last week's loss to the Colts because of a knee sprain, and he's trending in the wrong direction to start the week. The 28-year-old tight end functions mainly as a blocking specialist, as he's been targeted just four times over six games. If Pruitt's forced to miss this Sunday's matchup against the Ravens, Geoff Swaim likely will be active once again as the team's No. 3 tight end.