Washington Redskins running back Chris Thompson (35) rushes the ball past Buffalo Bills defenders in the second half of an NFL preseason football game Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Buffalo Bills defensive back Nickell Robey (37) fumbles a punt return as he is pressured by Washington Redskins linebacker Vic So'oto in the second half of an NFL preseason football game Saturday, Aug. 24, 2013, in Landover, Md. Washington gained possession of the ball on the play. (AP Photo/Nick Wass)

Washington Redskins tight end Jordan Reed, left, tries to slip past Buffalo Bills cornerback Ron Brooks in the second half of an NFL preseason football game Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Washington Redskins wide receiver Pierre Garcon (88) runs past Buffalo Bills cornerback Stephon Gilmore for a touchdown in the first half of an NFL preseason football game Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Washington Redskins wide receiver Pierre Garcon (88) spikes the ball after scoring a touchdown in the first half of an NFL preseason football game against the Buffalo Bills Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Buffalo Bills running back C.J. Spiller falls into the end zone for a touchdown in the first half of an NFL preseason football game against the Washington Redskins Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Buffalo Bills running back C.J. Spiller (28) reacts after injuring himself after scoring a touchdown in the first half of an NFL preseason football game against the Washington Redskins Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Washington Redskins head coach Mike Shanahan watches from the sideline during the first half of an NFL preseason football game against the Buffalo Bills Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Washington Redskins quarterback Rex Grossman looks for a receiver in the first half of an NFL preseason football game against the Buffalo Bills Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Washington Redskins running back Roy Helu (29) rushes the ball in the first half of an NFL preseason football game against the Buffalo Bills Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Washington Redskins quarterback Pat White throws to a receiver in the first half of an NFL preseason football game against the Buffalo Bills Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Washington Redskins quarterback Pat White, center, dives into the end zone for a touchdown in the first half of an NFL preseason football game against the Buffalo Bills Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Buffalo Bills quarterback Jeff Tuel throws to a receiver in the first half of an NFL preseason football game against the Washington Redskins Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Buffalo Bills quarterback Kevin Kolb throws to a receiver in the first half of an NFL preseason football game against the Washington Redskins Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Nick Wass)

Washington Redskins running back Keiland Williams, right, rushes past Buffalo Bills linebacker Chris White in the second half of an NFL preseason football game Saturday, Aug. 24, 2013, in Landover, Md. (AP Photo/Richard Lipski)