Starting guard Daryn Colledge and injury-plagued running back Ryan Williams were among four Arizona players missing the Cardinals' practice on Monday with injuries.
Linebacker Jasper Brinkley was sidelined with a sore knee and wide receiver LaRon Byrd sustained a concussion in the team's first practice in pads on Sunday.
Coach Bruce Arians says Colledge had nerve irritation in his right leg, which he called "good news" because the MRI showed no fracture.
Williams' surgically-repaired right knee flared up and he was unable to get through Sunday's practice. Williams termed it a minor setback and an MRI showed no structural damage.
Still, Williams is seeking a second doctor's opinion just to make sure.