Pierce was not out on the field a day after saying he was "fine." He suffered a head injury in the first quarter of Saturday's preseason game.
The bigger surprise was the absence of Elam, the starting strong safety. Elam played 36 snaps in Saturday's preseason game and made two tackles.
The Ravens did welcome back tight end Owen Daniels, who had missed the past two games with fatigued legs. He was participating in all of the position drills.
Cornerback Jimmy Smith wasn't suited up for practice, but he did run sprints during position drills. He bruised his chest in Aug. 16 preseason game at Dallas.
Injured players not practicing
RB Pierce (head)
CB Smith (chest)
CB Lardarius Webb (back)
CB Asa Jackson (ankle)
OT Jah Reid (head)
Not practicing, undisclosed reason
WR Kamar Aiken
Physically Unable to Perform list
NT Terrence Cody (hip)