Buffalo defensive back Jairus Byrd (31) breaks up a pass intended for Kansas City wide receiver Lance Long. The Bills defeated the Chiefs, 16-10, on Sunday in Kansas City, Mo.

Kansas City, Mo. ? Clinging to a six-point lead, the Buffalo Bills watched Kansas City convert one third down after another, moving the ball into position for the winning score.

Then something rare happened: The Bills came up with the big play. Two of them, actually.

Rian Lindell kicked three field goals, and the Bills had two of their four interceptions of Matt Cassel in the final 2:11 to beat the struggling Kansas City Chiefs, 16-10, on Sunday.

“They never flinched on the sideline,” Bills interim coach Perry Fewell said. “They came up with the turnovers when they had to come up with them. I was very proud of them. They were very determined today to get a victory.”

Buffalo (5-8) had been down this road before. Seven times this season, the Bills had lost when they were within a touchdown headed into the final 15 minutes.

Lindell had done his job, hitting a 36-yard field goal to put Buffalo up, 16-10, with 8:01 left.

Kansas City started the next drive at its 20-yard line and kept moving the chains. Cassel hit Bobby Wade for 22 yards on third-and-six, Leonard Pope for 16 yards on another third down. Then Jairus Byrd was called for pass interference at the Bills 21 to keep the drive alive.

Uh-oh. Not again.

Actually, not this time.

Chris Chambers dropped a pass inside the Bills five, and Byrd intercepted Cassel in the end zone on the next play. Kansas City got the ball back in the final minute for one last shot and Greg Wilson ended that by coming down with Cassel’s desperation heave into the end zone.

Kansas City (3-10) got a career-high 143 yards and a touchdown from Jamaal Charles, but couldn’t overcome another shaky game from Cassel.