Minnesota Vikings quarterback Christian Ponder (7) loses control of the ball on the snap during the first half of an NFL preseason football game against the Buffalo Bills on Friday, Aug. 16, 2013, in Orchard Park, N.Y. The Vikings retained possession. (AP Photo/Bill Wippert)

Minnesota Vikings quarterback Matt Cassel (16) attempts to recover his fumble as Buffalo Bills' Bryan Scott (43) chases him during the first half of an NFL preseason football game Friday, Aug. 16, 2013, in Orchard Park, N.Y. Bills' Jamie Blatnick recovered the ball in the end zone for a touchdown. (AP Photo/Gary Wiepert)

Buffalo Bills' Jamie Blatnick (58) recovers a ball fumbled by Minnesota Vikings quarterback Matt Cassel for a touchdown during the first half of an NFL preseason football game Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills' Jamie Blatnick (58) celebrates after recovering a ball fumbled by Minnesota Vikings' Matt Cassel (16) for a touchdown during the first half of an NFL preseason football game Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills' Jamie Blatnick, right, celebrates after recovering a fumble b20Minnesota Vikings' Matt Cassel for a touchdown during the first half of an NFL preseason football game Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Buffalo Bills quarterback Kevin Kolb (4) looks to pass during the first half of an NFL preseason football game against the Minnesota Vikings on Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Buffalo Bills running back C.J. Spiller (28) rushes past Minnesota Vikings' Everson Griffen (97) during the first half of an NFL preseason football game Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Minnesota Vikings running back Toby Gerhart (32) is chased by Buffalo Bills' Jerry Hughes (55) during the first half of an NFL preseason football game Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills outside linebacker Jerry Hughes (55) and teammate Marcell Dareus (99) celebrate after Hughes sacked Minnesota Vikings quarterback Christian Ponder during the first half of an NFL preseason football game Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills running back C.J. Spiller (28) talks with teammate quarterback Kevin Kolb (4) before of an NFL preseason football game against the Minnesota Vikings Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Buffalo Bills quarterback EJ Manuel warms up before an NFL preseason football game against the Minnesota Vikings Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Buffalo Bills cheerleaders look on before an NFL preseason football game against the Minnesota Vikings Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills' Jerry Hughes (55) sacks Minnesota Vikings' Matt Cassel (16) during the first half of an NFL preseason football game Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Buffalo Bills' Brad Smith (16) celebrates with teammates Chris Hogan (15) and Zach Brown, left rear, after scoring a touchdown during the second half of an NFL preseason football game against the Minnesota Vikings on Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Minnesota Vikings' Christian Ponder is hit by Buffalo Bills' Alex Carrington (92) and Manny Lawson (91) while throwing the ball during the first half of an NFL preseason football game Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills' EJ Manuel (3) looks to pass during the second half of an NFL preseason football game against the Minnesota Vikings on Friday, Aug. 16, 2013, in Orchard Park, N.Y. (AP Photo/Bill Wippert)