Thomas Clayton, Cardinals agree

FLAGSTAFF, Ariz. -- The Arizona Cardinals have signed running back Thomas Clayton and guard-center Rich Ohrnberger.

In corresponding moves, the Cardinals released wide receiver Stanley Arukwe and waived injured center Ryan Bartholomew.

Clayton appeared in three games with the Cleveland Browns last season. In 2010, he played in one game for New England and two with the Browns.

Ohrnberger spent the past three years with the Patriots but missed all of last season because of injury.