Mar 14, 2008 11:37 AM EST

Juan Gonzalez has been given a chance to prove he can stay healthy by the Cardinals, but he doesn't appear to be accomplishing that as he's out with a muscle strain.

"Yeah, it's a concern," Manager Tony La Russa said. "He needs not only to be (healthy), he needs the opportunity to demonstrate what he can do. One outstanding qualification he has ? is if he's himself he can hit in the middle of the order."

Via Post-Dispatch