Kirk (ankle) didn't practice Wednesday, Darren Urban of the Cardinals' official site reports.
Kirk can't seem to shake the ankle issue that he sustained Week 4 and then cost him three games before he was cleared to play again. He reappeared on the injury report last week, practicing on a limited basis on two occasions before progressing to full work for the final session. His lack of activity to begin Week 16 thus represents a step backward, though Kirk has two more opportunities to stem the tide before the Cardinals potentially tab him with an injury designation for Sunday's game at Seattle.