The tight end missed Wednesday's practice, spending portions on a stationary bike and working on leg drills outside while the rest of the team practiced inside the bubble.
Housler is too valuable to Arians' tight-end-heavy offense to risk an injury that could nag all season. Arians would rather sacrifice the practice time until Housler is 100-percent healthy.
"He's still day-to-day," Arians said. "He's making great progress.
"I don't want this thing to linger for a month. We want to get him well, like we did with (tight end) Kory Sperry. We got him well. We didn't hurry him back and sting it again and again and again and be limping all year."
The other Cardinals listed on the injury report are more for precautionary reasons. They're all are expected to play Sunday at St. Louis. And all, with the exception of Javier Arenas, missed time during training camp because of injuries.