OAKLAND, Calif. -- As the Oakland defense struggled through the first five weeks of the season, Derek Carr and the offense managed to repeatedly pick the team up and help the Raiders get off to their best start in 14 years.When Carr and the offense struggled to move the ball against the Kansas City Chiefs, the Raiders had no chance.Carr committed two turnovers and led the Raiders to just one score after the opening drive and the Chiefs picked apart Oaklands defense for a 26-10 victory Sunday.It hurts man, Carr said. We didnt do good enough at all. That was bad. That was a bad performance by us.The Raiders (4-2) entered the game on pace to allow the most yards per play by a team since the 1970 merger, but still managed to be in first place thanks to an offense that always kept them in games.Carr led second-half comebacks against New Orleans, Baltimore and San Diego, but couldnt do much of anything against the Chiefs (3-2) after throwing a 3-yard touchdown pass to Andre Holmes on the opening drive of the game.I thought we got outcoached and outplayed, coach Jack Del Rio said. Take your pick.The Raiders managed to score just once on their final nine drives. Carr missed an open Michael Crabtree on a deep pass on the second drive that turned into an interception by Marcus Peters.Sebastian Janikowski missed a 52-yard field goal the next drive and Oakland was stopped on fourth down when Carr threw incomplete to Seth Roberts the following drive when Del Rio opted against another long field goal.A 25-second drive for a field goal to end the first half seemed to give the Raiders a lift, but Oakland managed just three punts, one lost fumble and a turnover on downs in a scoreless second half.Carr finished 22 for 34 for 225 yards with one touchdown and one interception. He was hurt by a pair of third-down drops by Seth Roberts and Jalen Richard but wasnt sharp at all.After Carr connected nine times with Amari Cooper in the first half, the Chiefs adjusted their defense and limited Cooper to one catch in the second half.The running game managed just 65 yards on 17 carries with rookies DeAndre Washington and Richard unable to carry the load with Latavius Murray sidelined by a toe injury.That wasnt nearly enough to overcome a defense that allowed 183 yards rushing, gave up more than 390 yards of offense (406) for the sixth straight week, and forced just three punts and no turnovers.We go over this every week, linebacker Bruce Irvin said. Its the same. I dont know what else to tell you. Kansas City had a great game plan, hats off to them. They did a lot of window dressing. They did a lot of stuff, disguising stuff to make us believe one thing and they actually did another thing.The defensive performance has put heavy pressure on Carr and the offense all season.Carr downplayed that factor, saying his focus is on each individual drive and play and not on how the defense is playing overall.I really dont have time to think of those kinds of things, Carr said. My mindset is so focused on my job. Im just focused on that so I really dont think about that.---Online:AP NFL website: www.pro32.ap.org and www.twitter.com/AP-NFLGraig Nettles Jersey . -- Stanford squashed Oregons national championship hopes again, schooling the Ducks in power football. Ken Harrelson Indians Jersey . 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Breaking three of his own world records on his way to winning in Paris, Chan silenced the critics and left the audiences standing in appreciation and awe.ENGLEWOOD, Colo. -- Peyton Mannings successor isnt Brock Osweiler or Colin Kaepernick or Mark Sanchez, all of whom had better offseason odds than NFL novice Trevor Siemian.When Broncos GM John Elway declined to overpay Osweiler, Mannings longtime backup bolted to Houston 48 hours after his mentor called it a career. Elway quickly acquired Sanchez from the Eagles but he really had his eyes fixed on Kaepernick, who rejected a pay cut to facilitate a trade from the 49ers to Denver.So, Elway moved on -- and he moved up in the first round of the draft, selecting Paxton Lynch of Memphis, who very well might be the franchises future.The present, though, belongs to Siemian, a QB who won the starting job with a mix of brains and brawn, precision and poise, steadiness and spunk.The Carolina Panthers will certainly try to unnerve Siemian in his first NFL start Thursday night in the 2016 season opener .Thing is, nobody at Broncos headquarters has ever seen the 2015 seventh-round pick get rattled.Not when he was Osweilers backup for two months last season when Manning was hurt.Not when he ran the scout team against Denvers destructive defense that brought home the Lombardi Trophy.Not even when coach Gary Kubiak named him the starter.Hes the same guy: cool, calm and collected, said wide receiver Emmanuel Sanders. Hes not going to change. Hes not going to waver. I know that he wants to show the world, `Hey, look at this guy out here, No. 13. I think he can make plays and make all the throws.So, just who is Trevor Siemian?(Lets start with a pronouncer: Its Sim-EE-in).He was a high school star in central Florida who could have gone to any number of schools that would have loved that strong right arm that also made him an outstanding third baseman. He chose Northwestern, though, as much for its academics as its athletics.He played in 44 games for the Wildcats but started just 14 -- yet still finished as the schools fourth-leading passer.He tore an ACL in his final college game and that scared away plenty of teams but not the Broncos, who chose him with the 250th overall pick, after which Siemian declared, I cant think of a better scenario than to learn from Manning and Osweiler.By training camp last year he was healthy enough to practice and he quickly showed Elway that he wouldnt be able to slip him through waivers to get him on the practice squad. He made the 53-man roster and spent the season soaking in all he could from his coaches and colleaguees.ddddddddddddIt was a great opportunity for me last year to learn a lot from Brock and Peyton, Siemian said as the Broncos began their offseason program last spring. At this point, Im kind of getting antsy to apply some of those things I picked up from those guys.That, he did.Siemian had a years head start in Kubiaks West Coast offense, and he used that advantage to show Elway that his answer at quarterback had been under his nose all along.Siemian mixed that knowledge with accurate, strong throws and poise under pressure to win his teammates trust.Siemian may come off as humdrum in interviews, but hes actually a cutup whose locker room leadership is apparent even on a roster full of seasoned stars with new diamond-encrusted rings.Hes a guy thats very smart, he likes to laugh, he likes to have fun, but he also likes to work, tight end Virgil Green said. He goes out there every day ready to fight.Who is Trevor Siemian? kicker Brandon McManus pondered. I guess a lot of people dont see it, they kind of see him as pretty straightforward, kind of his media interviews and whatnot. Hes a pretty big goofball, just hearing him laugh a lot and loves to tell jokes. He and I play golf a decent amount, just shooting the breeze around the golf course. Hes a super funny person. But as everyone says, hes super intelligent, he knows a lot of stuff and theres a reason that they named him the starter.His demeanor didnt change when Kubiak named him the starter and said he wont have to dial down the playbook.Trevor has always been himself, left guard Max Garcia said. Hes kind of lighthearted and its good to have a guy like that. Even when he got here as a rookie he was very poised. I cant say that Ive ever seen him rattled.McManus cant even recall Siemian ever losing his cool on the golf course. He just has that slow heartbeat that coaches and teammates love.I dont know where hes learned that from, McManus said. Ive never even talked to him about it before but Ive seen it on the field and all the players talk about it. So, its just kind of a unique trait that he has that helps him stay calm throughout the game and gives us a chance to win.---AP NFL website: www.pro32.ap.org and AP NFL Twitter feed: www.twitter.com/AP-NFL---Follow AP Pro Football Writer Arnie Melendrez Stapleton on Twitter: http://twitter.com/arniestapleton ' ' '