LOS ANGELES — Darrel Williams scored from a yard out with 20 seconds left, his second touchdown of the game, and the Kansas City Chiefs remained unbeaten with a wild 34-30 win over the host Detroit Lions on Sunday.

That score capped a 13-play, 79-yard drive, highlighted by Patrick Mahomes’ 15-yard run on fourth-and-8. Mahomes passed for 315 yards but no touchdowns. LeSean McCoy gained 56 yards on 11 carries with a score, while Bashaud Breeland returned a fumble 100 yards for a third-quarter TD.

Travis Kelce added seven receptions for 85 yards for the Chiefs (4-0).

Matthew Stafford threw for 291 yards and three touchdowns for Detroit (2-1-1). Kenny Golladay caught five passes for 67 yards and two touchdowns. Kerryon Johnson gained 125 yards on 26 carries but also lost the fumble that led to Breeland’s score.

The defense slowed down Dallas’ high-scoring offense, and Wil Lutz kicked four field goals as New Orleans improved to 2-0 in the absence of injured quarterback Drew Brees.

The Cowboys had at least 31 points and 474 yards in winning each of their first three games for their best start in 11 years, but managed just 257 yards against the Saints (3-1), who hope to get Brees back in about a month.

Ezekiel Elliott, who had 100-plus yards in each of the last two games despite missing all of the preseason in a contract holdout, was held to 35 rushing yards on 18 carries, the second-lowest yards-per-carry average (1.9) of his career.

J.C. Jackson recorded two interceptions and blocked a punt that led to a touchdown, as New England hung on against Buffalo in Orchard Park, New York.

The Patriots benefited from four interceptions and five sacks to improve to 4-0 for the first time since 2015, remaining perfect despite mustering just 224 yards of total offense. Tom Brady completed 18 of 39 passes for 150 yards while throwing his first interception of the season.

Bills quarterback Josh Allen sustained a concussion early in the fourth quarter, having scored on a 1-yard run and thrown three interceptions.

Nick Chubb ran for 165 yards and three second-half touchdowns, highlighted by an 88-yard fourth-quarter score, as Cleveland snapped a three-game road losing streak to AFC North rival Baltimore.

With the ball on Cleveland’s 12-yard line after the Ravens (2-2) got within 24-18 with 9:51 left in the game, Chubb burst off right tackle and sprinted down the near sideline for the important touchdown. — Reuters