Per Chris Brown of BuffaloBills.com:
Down to three healthy corners after Ron Brooks was moved to injured reserve Tuesday, Buffalo made use of their two open roster spots to fortify their cornerback position. The Bills called up CBs Bud Noel and Sammy Seamster from their practice squad Wednesday.
... Taking the two vacant spots on Buffalo's practice squad are CB Phillip Thomas and TE Manasseh Garner, who signed Wednesday.