Cardinals SS Adrian Wilson will undergo an MRI after suffering an injury to his elbow or biceps in practice on Saturday.
PFW correspondent and Arizona Republic writer Kent Somers tweeted that the Cardinals won't know about Wilson's injury until tonight.
The team did re-sign S Matt Ware, pending a physical. The eighth-year veteran played in 14 games last season and recorded six tackles. He has seven career passes defensed.
Wilson is an 11-year veteran with 25 career picks. He started all 16 games last season.