Both Levy (foot) and Pettigrew (ankle) missed their third practice this week.
They were two of five Lions to miss practice Friday. Louis Delmas (knee), Rashean Mathis (illness) and Darius Slay (knee) also were out. For Delmas, this is a typical maintenance day. Mathis also missed Thursday with an illness.
Slay actually was at practice with a sleeve on his right knee, just no helmet. He even participated in some light drill work with the other defensive backs.