According to Ian Rapoport and Adam Schefter, the Buffalo Bills have released punter Shawn Powell.
Bills announced they released punter Shawn Powell, who can blame Browns returner Travis Benjamin for that. Took one to the house last night
— Ian Rapoport (@RapSheet) October 4, 2013 
Not happy with what they saw last night, the Bills released P Shawn Powell.
— Adam Schefter (@AdamSchefter) October 4, 2013