KANSAS CITY, Mo. — The Chiefs blocked Denver Broncos kicker Wil Lutz’s 35-yard field goal attempt as time expired on Sunday, and Kansas City escaped with a 16-14 victory to extend its winning streak to 15 games dating to last season.

The Chiefs had taken the lead on Harrison Butker’s field goal with 5:57 remaining, but Bo Nix and the Broncos converted on a trio of third downs while marching right back down field. They proceeded to set up Lutz for the winner, but Leo Chenal was given credit for coming up the middle amid a big push by the Kansas City defensive line to get his hand on the kick.

Patrick Mahomes finished with 266 yards passing and a touchdown for Kansas City, which became only the fifth team to follow up a Super Bowl triumph by winning its first nine games. That also matches the best start to a season in franchise history.

Travis Kelce had eight catches for 64 yards and a touchdown for Kansas City. Kareem Hunt was held to 35 yards rushing but also caught seven passes for 65 yards.

Nix finished with 215 yards passing and two touchdowns for the Broncos (5-5). Courtland Sutton had six catches for 60 yards and a score, and his 13-yard reception on third-and-6 with 1:45 left gave Denver a chance to kick as time expired.

The Broncos defense harassed Mahomes throughout the first half and they capitalized on offense with two long scoring drives, the first ending with Nix finding Devaughn Vele wide open and the second with Sutton’s 32-yard TD catch for a 14-3 lead.

Kansas City closed within 14-13 on Butker’s field goal late in the third quarter.