Buffalo Bills cornerback Ronald Darby, right, breaks up a pass intended for Carolina Panthers wide receiver Devin Funchess (17) during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Heather Ainsworth)

Buffalo Bills quarterback Tyrod Taylor (5) dives for the first down marker during the first half of an NFL preseason football game against the Carolina Panthers on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Carolina Panthers wide receiver Brenton Bersin (11) catches a touchdown in front of Buffalo Bills defenders Ty Powell (57) and (27) during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills quarterback EJ Manuel (3) scrambles from Carolina Panthers defensive back Carrington Byndom (37) during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Carolina Panthers running back Brandon Wegher (32) beats Buffalo Bills defensive back Rod Sweeting (44) for a touchdown during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills running back Bryce Brown (35) scores a touchdown against the Carolina Panthers during the first half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills wide receiver Deonte Thompson (80) catches a touchdown pass in front of Carolina Panthers' T.J. Heath during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Heather Ainsworth)

Carolina Panthers quarterback Joe Webb (14) is hit by Buffalo Bills defenders B.J. Larsen (69) and Randell Johnson (58) during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Heather Ainsworth)

Carolina Panthers quarterback Joe Webb (14) passes under pressure from Buffalo Bills linebacker Ikemefuna Enemkpali (75) during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Carolina Panthers quarterback Derek Anderson (3) runs against the Buffalo Bills during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills kick returner Deonte Thompson (80) is taken down by Carolina Panthers defensive back Carrington Byndom (37) during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills quarterback Tyrod Taylor (5) is taken down by Carolina Panthers outside linebacker A.J. Klein (56) during the first half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Heather Ainsworth)

Carolina Panthers wide receiver Brenton Bersin (11) catches a touchdown in front of Buffalo Bills defenders Ty Powell (57) and (27) during the second half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills running back Karlos Williams (40) scores a touchdown against the Carolina Panthers during the first half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills running back LeSean McCoy (25) is tripped up by Carolina Panthers cornerback Josh Norman (24) during the first half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Heather Ainsworth)

Carolina Panthers running back Fozzy Whittaker (43) runs against Buffalo Bills outside linebacker Nigel Bradham (53) during the first half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Carolina Panthers wide receiver Kelvin Benjamin (13) catches a touchdown pass in front of Buffalo Bills cornerback Ronald Darby (28) during the first half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills wide receiver Robert Woods (10) pushes off Carolina Panthers middle linebacker Luke Kuechly (59) during the first half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills quarterback Matt Cassel (16) passes against the Carolina Panthers during the first half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Carolina Panthers quarterback Cam Newton (1) looks to pass against the Buffalo Bills during the first half of an NFL preseason football game on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Heather Ainsworth)

Buffalo Bills quarterbacks EJ Manuel (3) and Matt Cassel (16) run out of the tunnel during warms up before an NFL preseason football game against the Carolina Panthers on Friday, Aug. 14, 2015, in Orchard Park, N.Y. (AP Photo/Bill Wippert)