ALAMEDA, Calif. -- Despite being on pace to set an NFL record for yards allowed, Raiders defensive coordinator Ken Norton Jr. has no plans to make any major changes.Oakland ranks last in total defense and is 24th in points allowed heading into Sundays game at Jacksonville. The problems have been widespread, from missed tackles to blown coverages to communication issues that have derailed the teams otherwise promising start.The Raiders made two personnel changes prior to Week 3, inserting first-round draft pick Karl Joseph and fellow rookie Cory James into the starting lineup. Beyond that, things have mostly stayed the same and the disappointing results have continued to pile up.While fans have been clamoring for a change of some kind, Norton insists he has no plans to do anything differently.It depends on what you believe in, Norton said Thursday. Obviously youd like the stats to be better. Were in a pretty good place record-wise but your stats need to be better. We need to continue understanding what we are, who we are and get better at what were doing.The little things, the details, need to be taken care of. You look at the real good defenses (and) you look at our defense, theres not a lot of differences. But they make the plays that theyre supposed to make.Through six games the Raiders havent made very many plays at all defensively.Oakland has held only one team -- Tennessee in Week 3 -- to fewer than 400 yards and is on pace to give up 7,117 yards for the entire season. That would break the NFL record of 7,042 yards allowed by the New Orleans Saints in 2012.Raiders coach Jack Del Rio, who spent three seasons as defensive coordinator in Denver, took over play-calling from Norton at one point during a Week 2 loss to Atlanta but has otherwise allowed his coordinator to run the defense.Like Norton, Del Rio acknowledged the need for improvement but said that making sweeping changes isnt part of the solution for now.Its clear that were not operating the way that we need to operate to play really good defense, Del Rio said. It starts with the communication aspect, from the sideline to the huddle, from the huddle amongst each other out there. Thats one of the areas. When that cleans up, its going to alleviate a lot of issues that were having.Del Rio pointed to the teams youth on defense as part of the reason the team has struggled. Oakland starts three rookies on defense -- Joseph, James and defensive end Jihad Ward. Three other starters -- defensive end Khalil Mack, defensive tackle Justin Ellis and cornerback David Amerson -- have been in the league less than four years.Norton echoed Del Rios feelings and said that more than anything the Raiders lack consistency.We have the right people. Its a matter of getting it done on game day, Norton said. We need to make the plays consistently. We need to stay on top, we need to tackle, we need to certainly be more clear and everybody wants to talk about communication, but its about consistency over the duration of the game, showing up with a game mindset and winning. We have to be sharper and we have to play better.Note: Running back Latavius Murray practiced for a second straight day after missing two games with a toe injury. Murray has been limited but the coaching staff is hopeful he can play in Jacksonville.----Online:AP NFL website: www.pro32.ap.org and www.twitter.com/AP-NFLBilly Wagner Jersey . - Blake Griffin had 30 points and 12 rebounds, J. 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NEW YORK -- Nick Kyrgios already was flexing his right hip before a game late in the first set of his third-round match at the U.S. Open. Then came a wild point that ended with him skidding to a stop on his knees on the sideline.Not long after that, the 14th-seeded Kyrgios again tried to stretch out his hip, before taking a medical timeout for help from a trainer. Soon enough, he was barely moving during points. Eventually, Kyrgios stopped while trailing 4-6, 6-4, 6-1 on Saturday night, allowing 63rd-ranked Illya Marchenko of Ukraine to reach the fourth round at a Grand Slam tournament for the first time.Its round of 16! Marchenko exclaimed to the Arthur Ashe Stadium crowd during an on-court interview. Oh, my God!Marchenko will face two-time major champion and No. 3 seed Stan Wawrinka next.Kyrgios dealt with a hip injury earlier this season and showed signs of trouble after only nine games Saturday, even as he played a calm, patient brand of baseline tennis that hes not necessarily known for. At 2-all in the second set, he sprinted forward to get to a sharply angled shot by Marchenko, reaching out to barely lift the ball back over the net for a backspin-filled winner.dddddddddddd But Kyrgios momentum nearly carried him all the way to the chair umpires stand and he went down to the ground, skinning his left knee and drawing a bit of blood.After getting broken to trail 5-4 in the second set, Kyrgios flexed that hip again. When that set ended, Kyrgios headed to the locker room with a trainer. But things didnt improve. He spent much of the third set barely moving between points, calling for the trainer, cursing, and, at one point, muttering that he felt as if hed been hit by a bus.Down 4-1 in the third, Kyrgios sat down gingerly in his changeover seat, covered his face with a white towel while speaking to the trainer, and then appeared on the verge of tears.A couple of games later, he quit.Well, Im a little bit shocked right now, said Marchenko, whose red shirt was decorated with white skulls and stars. Im really sorry for Nick. I didnt want to win this way. ... A win is a win.---Follow Howard Fendrich on Twitter at http://twitter.com/HowardFendrich(backslash) ' ' '