Backup inside linebacker Keyaron Fox joined safety LaRon Landry and linebacker Brian Orakpo as players limited by injury in Washington’s practice Thursday.

Fox sat out portions of practice with a sore back. Landry (hamstring) and Orakpo (ankle) were limited for a second straight day.

Punt/kick returner Brandon Banks (knee), tight end Chris Cooley (knee), cornerback DeAngelo Hall (back), receiver Donte Stallwroth (shoulder) and long-snapper Nick Sundberg (hand) practiced despite injuries.

Redskins coach Mike Shanahan said it’s still too early to tell whether Landry will make his season debut Sunday against the Arizona Cardinals. But it’s likely that Orakpo will play. The linebacker sprained his right ankle early in Sunday’s game against the Giants, but returned and missed only four plays. He appeared to move without any problems during practice Thursday.

Limited in practice for the Arizona Cardinals on Thursday were starting outside linebacker Joey Porter (knee), backup tight end Jim Dray (pectoral muscle), punter Dave Zastudil (calf) and cornerback Crezdon Butler (ankle). Not practicing were starting inside linebacker Daryl Washington (calf), receiver DeMarco Sampson (hamstring) and running back LaRon Stephens-Howling (hand).