Chiefs 28, Jaguars 2
JACKSONVILLE, Fla. -- Alex Smith threw two early touchdown passes, Kansas City's defence dominated all day and the Chiefs began the Andy Reid era with a victory at Jacksonville.
Jamaal Charles ran for 77 yards and a touchdown before leaving the game with a quadriceps injury, but that was about the only negative for the Chiefs.
Jacksonville advanced past its own 36-yard line just once, a stunning display of offensive futility for the rebuilding franchise. The Jaguars finished with 178 yards, but for most of the game were challenging the team low of 117 yards set last year against Houston.
It wasn't even close to the start the new coach Gus Bradley wanted, but it was a clear indication of how far the team has to go.
Bears 24, Bengals 21
CHICAGO -- Jay Cutler passed to Brandon Marshall for the go-ahead touchdown in the fourth quarter, helping Chicago get the victory in Marc Trestman's coaching debut with the team.
It wasn't quite the display the Bears were looking for after making some big changes in the off-season. But it was good enough.
The Bengals led by 11 in the third quarter and were up 21-17 early in the fourth when Tim Jennings jarred the ball from Mohamed Sanu following a reception and made the recovery.
Chicago took over at its 19 and got an 8-yard run from Matt Forte on fourth-and-inches at the Bengals 27 to keep the drive going. Cutler then found Marshall in the front corner of the end zone for a 19-yard touchdown, giving Chicago a 24-21 lead with 7:58 remaining.
Patriots 23, Bills 21
ORCHARD PARK, N.Y. -- Stephen Gostkowski hit a 35-yard field goal with 5 seconds left to send New England to the road win.
Tom Brady set up the decisive score by leading a 49-yard, 12-play drive during which he twice completed passes to convert third downs. It was Brady's 36th career victory in which the Patriots were tied or trailed in the fourth quarter.
Brady finished 29 of 52 for 288 yards passing and two touchdowns in helping the Patriots win their season opener for the 10th straight season.
The new-look Bills nearly pulled off a stunning upset in the first game under coach Doug Marrone and rookie quarterback EJ Manuel, who completed 18 of 27 passes for 150 yards and two touchdowns.
Colts 21, Raiders 17
INDIANAPOLIS -- Andrew Luck ran 19 yards for the winning touchdown, giving Indianapolis its first opening-day win since 2009.
Luck was 18 of 23 for 178 yards with two touchdown passes, but earned his eighth career fourth-quarter comeback by scrambling for a score with 5:20 to go.
Oakland started Terrelle Pryor at quarterback. He was 19 of 29 for 217 yards and one TD, and he broke the Raiders' rushing record for a quarterback with 13 carries for 112 yards.
But he also threw two interceptions in the red zone, the second coming with 25 seconds left in the game.
Lions 34, Vikings 24
DETROIT -- Reggie Bush turned a short pass into a 77-yard touchdown in the third quarter and finished with 191 yards of offence to help Detroit pull away from Minnesota.
Joique Bell ran for two TDs, including a go-ahead score that gave the Lions their first lead early in the third quarter.
Matthew Stafford was 28 of 43 for 357 yards with two TDs. His last score was a 1-yard lob to rookie tight end Joseph Fauria with 6:47 left that sealed the win.
Adrian Peterson ran for a 78-yard TD on his first carry and scored on a 4-yard run to give Minnesota a 14-6 lead in the second. He ended up with 93 yards rushing.
Jets 18, Buccaneers 17
EAST RUTHERFORD, N.J. -- Nick Folk kicked a 48-yard field goal with 2 seconds remaining after Lavonte David's personal foul penalty kept New York's drive alive, and the Jets pulled out an improbable opening victory.
With the Jets trailing 17-15 and time running out, rookie Geno Smith scrambled for 10 yards -- and was shoved while he was out of bounds by David.
The 15-yard penalty gave the Jets the ball at the Buccaneers 30 and set up Folk's winning field goal on the next play.
Things appeared dim for the Jets just moments earlier when Rian Lindell kicked a 37-yard field goal with 34 seconds left.
Smith, making his first NFL start with Mark Sanchez out with a shoulder injury, made some mistakes -- a fumble that led to a score and an interception -- but was mostly solid while going 24 of 38 for 256 yards with a touchdown.
Titans 16, Steelers 9
PITTSBURGH -- Tennessee's revamped defence sacked Ben Roethlisberger five times and the Titans shut down the Steelers.
Chris Johnson ran for 70 clock-chewing yards, Jackie Battle bulled his way to a 3-yard touchdown in the second quarter, and Rob Bironas kicked three field goals for the Titans. Tennessee's new-look defence did the rest.
Pittsburgh managed just 195 total yards and lost a series of players to injury, including Pro Bowl centre Maurkice Pouncey. Pouncey left in the first quarter with a right knee injury and likely will miss an extended amount of time.
The Titans gave up more points than any team in the NFL last season and brought in Gregg Williams as an assistant. His impact was immediate. Roethlisberger completed 21 of 33 passes for 191 yards and a late touchdown, but never got comfortable when the game was in doubt.
Seahawks 12, Panthers 7
CHARLOTTE, N.C. -- Russell Wilson threw for 320 yards for Seattle, including a 43-yard touchdown pass to Jermaine Kearse in the fourth quarter.
The Seahawks managed just two field goals before Kearse beat cornerback Josh Thomas down the right sideline for the go-ahead score with 10:13 left.
The Panthers held Marshawn Lynch to 43 yards rushing, but Wilson picked up the slack by completing 25 of 33 passes.
The Panthers threatened to take the lead late, but safety Earl Thomas forced DeAngelo Williams to fumble at the Seattle 8. Defensive tackle Tony McDaniel recovered with 5:25 left. The Seahawks ran out the clock from there.
Carolina's Cam Newton was held to 125 yards passing and one touchdown, a 3-yard strike to Steve Smith in the first half.
Dolphins 23, Browns 10
CLEVELAND -- Ryan Tannehill passed for 272 yards and a touchdown, leading the Dolphins to a win over the Browns, who fell to 1-14 in Week 1 since 1999.
Tannehill, who was given more offensive weapons for his second NFL season, threw a 34-yard TD pass to Brian Hartline in the third quarter and drove the Dolphins to a game-clinching TD in the fourth.
Daniel Thomas had a 1-yard scoring plunge with 6:48 left, putting the Dolphins up by 10.
Miami's Cameron Wake had 2 1/2 sacks and the Dolphins' defensive line sacked Brandon Weeden six times.
Weeden threw three interceptions and the Browns never got anything going in coach Rob Chudzinski's debut.
Rookie Caleb Sturgis kicked three field goals for the Dolphins.
Rams 27, Cardinals 24
ST. LOUIS -- It was a new season with the same old problem for the Arizona Cardinals: a quarterback under siege.
Carson Palmer was solid in his debut for the Cardinals on Sunday, but he was sacked four times and pressured often in a 27-24 loss to the St. Louis Rams.
The biggest culprit was left tackle Levi Brown, who surrendered three sacks to Rams defensive end Robert Quinn, including one in the fourth quarter that led to a fumble that set up the Rams' tying field goal.
Rams tight end Jared Cook caught two touchdowns and had a key reception in the drive that led to Greg Zuerlein's tiebreaking field goal with 40 seconds to go, completing a comeback from an 11-point fourth-quarter deficit.
Cowboys 36, Giants 31
ARLINGTON, Texas -- Brandon Carr returned an interception 49 yards for a clinching touchdown, and the Cowboys beat Manning for the first time at their fancy $1.2 billion stadium with six takeaways in a 36-31 victory over the Giants on Sunday night.
Dallas QB Tony Romo hit Jason Witten with a pair of TD passes.
-- The Associated Press