Quay Walker likely out again; others in question

Packers LB Quay Walker (groin) is doubtful for Sunday's game against the Steelers. Assuming he's out, that will mean LB Isaiah McDuffie starting in his place for the second straight game. Green Bay also expects to go without lead CB Jaire Alexander (shoulder), who is also doubtful. In addition, DT Kenny Clark (shoulder) and S Rudy Ford are questionable. We'll check the status of all four players Sunday before the game.