ORCHARD PARK —
Chiefs safety Kendrick Lewis also had an interception, picking off Tuel's pass that sailed over the head of tight end Scott Chandler in the second quarter. That led to Ryan Succop's 27-yard field goal. Succop also hit from 41 and 39 yards.
Smith's interception return changed the game's complexion to start the third quarter.
With the Bills ahead 10-3, Tuel marched Buffalo 79 yards to the Chiefs 1. After Fred Jackson was stopped twice for no gain, Tuel took a shotgun snap, and looked immediately to his right, where Graham was running a slant pattern. Tuel, however, failed to account for Smith, who easily picked off the pass at the goal line and then took off up the left sideline.
The Bills' offense then went nowhere. Buffalo's next possession ended in downs on the Kansas City 36 when Tuel overthrew Graham on fourth-and-2.
Buffalo then had to settle for Dan Carpenter's 30-yard field goal on its next drive, which stalled at the Chiefs 12.
The Chiefs' offense, meanwhile, wasn't going anywhere. Alex Smith finished 19 of 29 for 124 yards passing. Running back Jamaal Charles had 90 yards rushing but only 6 receiving in being held under 100 yards from scrimmage for the first time this season.
The Bills ran all over the Chiefs' defense in finishing with a season-best 241 yards rushing. Buffalo was led by C.J. Spiller, who had 116 yards rushing.