Buffalo Bills' Mario Williams (94) runs a drill during NFL football training camp in Pittsford, N.Y., Friday, July 27, 2012. (AP Photo/David Duprey)

Buffalo Bills' Marcus Easley (81) makes a catch under pressure from Bills' Isaiah Green (46) during NFL football training camp in Pittsford, N.Y., Friday, July 27, 2012. (AP Photo/David Duprey)

Buffalo Bills' Mario Williams greets the fans as he arrives for NFL football training camp in Pittsford, N.Y., Friday, July 27, 2012. (AP Photo/David Duprey)

Buffalo Bills' Stevie Johnson (13) catches a pass from Bills' Ryan Fitzpatrick (14) during NFL football training camp in Pittsford, N.Y., Friday, July 27, 2012. (AP Photo/David Duprey)

Buffalo Bills' Stevie Johnson can't make the catch during NFL football training camp in Pittsford, N.Y., Friday, July 27, 2012. (AP Photo/David Duprey)

Buffalo Bills' Stephon Gilmore runs a drill during NFL football training camp in Pittsford, N.Y., Friday, July 27, 2012. (AP Photo/David Duprey)

Buffalo Bills' C. J. Spiller (28) runs under pressure from Tank Carder during NFL football training camp in Pittsford, N.Y., Friday, July 27, 2012. (AP Photo/David Duprey)

Buffalo Bills' Dwan Edwards works out during NFL football training camp in Pittsford, N.Y., Friday, July 27, 2012. (AP Photo/David Duprey)

Buffalo Bills' Ron Brooks, front, intercepts a pass intended for David Clowney, back, during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

Buffalo Bills' Stephon Gilmore, right, runs a drill with T. J. Graham (11) during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

Buffalo Bills' David Nelson leaves the field after an injury during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

Buffalo Bills' T. J. Graham makes a catch during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

Buffalo Bills' David Nelson, right, is checked by a trainer during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

Buffalo Bills' Ruvell Martin (82) makes a catch under pressure from Bills' Justin Rogers (26) during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

Buffalo Bills' Terrence McGee (24) makes a catch during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

Buffalo Bills' Mario Williams, left, runs a drill with Bills' Mark Anderson, right, during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

Buffalo Bills' Aaron Williams (23) blocks a pass intended for Stevie Johnson during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

RETRANSMISSION FOR ALTERNATE CROP - Buffalo Bills' Stevie Johnson jokes around as he hits a tire with a sledgehammer during NFL football training camp in Pittsford, N.Y., Saturday, July 28, 2012. (AP Photo/David Duprey)

Buffalo Bills' Fred Jackson, front, makes a catch under pressure from Scott McKillop during NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Vince Young (10) stretches with teammates during NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Ryan Fitzpatrick (14) runs a drill with teammates during NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Stevie Johnson signs autographs for fans after NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Fred Jackson attends NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Da'Norris Searcy (25) signs autographs for fans after NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Stevie Johnson, right, has a pass blocked by Bills' Stephon Gilmore, left, during NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Shawne Merriman (56) runs a drill with Cordy Glenn (77) during NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Fred Jackson, left, signs autographs for fans after NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Ryan Fitzpatrick throws during NFL football training camp in Pittsford, N.Y., Thursday, July 26, 2012. (AP Photo/David Duprey)

Buffalo Bills' Eric Wood reports for NFL football training camp in Pittsford, N.Y., Tuesday, July 24, 2012. (AP Photo/David Duprey)

Buffalo Bills' Kyle Williams reports for NFL football training camp in Pittsford, N.Y., Tuesday, July 24, 2012. (AP Photo/David Duprey)

Buffalo Bills' Chris Kelsay reports for NFL football training camp in Pittsford, N.Y., Tuesday, July 24, 2012. (AP Photo/David Duprey)

Buffalo Bills general manager Buddy Nix talks with reporters before the NFL football team's training camp in Pittsford, N.Y., Tuesday, July 24, 2012. (AP Photo/David Duprey)