Terms of the deal with the veteran linebacker weren't disclosed.
The Browns have lost linebackers D'Qwell Jackson and Eric Barton to season-ending injuries. Cleveland's defense is ranked last in the NFL in yards allowed.
Barton was placed on injured reserve Tuesday with an unspecified injury. Browns coach Eric Mangini said Barton was discussing possible surgery with doctors.
David Bowens likely will start in Barton's spot.
Copyright 2009 by The Associated Press