CHAPEL HILL, N.C. -- Moments of frustration seemed to be a sticking point with North Carolina since its last game, albeit a nine-point victory.So the No. 7 Tar Heels have vowed to produce an upgrade against Tennessee on Sunday at the Smith Center.We definitely have to go back to the drawing board, forward Kennedy Meeks said. We have to learn from it. We cant have too many bad film sessions throughout the year because that means were not playing that great. ... Thats the way the game goes sometimes. You have to just live with it and move on.Tennessee (4-3) is playing its best so far with a three-game winning streak.We have to go in and know that Carolina is going to be on edge and we have to be ready to play right from the tip, Tennessee coach Rick Barnes said.North Carolina (9-1) defeated Davidson, 83-74, but the margin was three points late in the game. The outcome seemed to stir regret from the Tar Heels by the way they performed.Weve got to figure out some things, swingman Justin Jackson said.The Tar Heels might have to do it again without junior point guard Joel Berry, who missed the Davidson game after suffering a sprained ankle last Sunday against Radford.Berrys status is questionable for the Tennessee game.That put Nate Britt, who had been a part-time starter on the wing, at starting point guard, although Seventh Woods and Stilman White were also used.White scored on six free throws for a career high mark, logging 15 minutes for the seniors third-most court time in his career. His only longer playing time came in two NCAA Tournament games as a freshman in March 2012 when he was pressed into duty after Kendall Marshall was injured.White took a two-year Mormon mission before returning to the Tar Heels.I told Stilman the other day he has done some nice things for us in practice, Tar Heels coach Roy Williams said. He really has done a great job of running the scout team. I think he gave us a big lift.Jacksons seven 3-pointers in the Davidson game picked up some of the perimeter scoring. Jackson has 22 baskets from 3-point range this season, while last season he didnt make is 22nd 3-pointer until the 28th game.However, Barnes is concerned about what the Tar Heels might be able to do closer to the basket.We certainly dont have the size they have, Barnes said. Weve talked a lot about rebounding. ... You just have to be impressed that they play a very high-efficiency type of basketball.Tennessee is coming off an encouraging game when it tied a school record with 16 made 3-point baskets against Presbyterian.The Volunteers, who are facing a Top 10 opponent in a non-conference game for the first time since 2011, will be playing in their first true road game of the season.We have to go in there and stick to the scouting report, Tennessee guard Shembari Phillips said. Teams like that, its a real test.North Carolina leads the series 8-1, although this will be the first meeting in Chapel Hill since 1948 in Woollen Gym. So the Volunteers have never played at the Smith Center.Its a cool experience, but its also a great opportunity, Tennessee forward Lew Evans said.Barnes, a North Carolina native, is considered a villain of sorts in Chapel Hill. While the Clemson coach, he had a well-publicized feud with then-Tar Heels coach Dean Smith in the mid-1990s.However, Barnes said Smith is one of the coaches he studied and admired as he entered the coaching profession. He said the chance to bring his team to the Smith Center is a good situation.I have nothing but great respect for (North Carolinas) program, he said. Cheap Custom Wizards Jersey .R. Smith realized how easily basketball can be taken from him, and he wasnt going to take his place in the NBA for granted anymore. 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METAIRIE, La. -- New Orleans Saints safety Kenny Vaccaro will serve a four-game suspension, starting this Sunday at Tampa Bay, because he violated league rules pertaining to performance enhancing drug use, the NFL announced Friday.The league did not specify which banned substance was found in Vaccaros system. The league not only bans steroids, but also diuretics that have been known to mask steroid use, so a positive test for either could have triggered a suspension.The Saints have four regular-season games left, meaning Vaccaros wont play again this season unless New Orleans (5-7) rallies to make the playoffs. The Saints trail NFC South Division leaders Tampa Bay and Atlanta by two games.Saints defensive coordinator Dennis Allen said the Saints were aware of the initial positive test, which had to be confirmed and could have been appealed, so he and his staff had time to develop a contingency plan for this very scenario.Were ready to go out and execute that contingency plan, Allen said. Obviously, when you lose a guy of his caliber, its tough and hard on your defense. Its hard on the football team, but yet its no different than dealing with injuries throughout the season. These things happen and you have to be prepared for them when they do.Vaccaro, a first-round draft choice out of Texas in 2013, was in on 67 solo or assisted tackles this season. He had one sack, five tackles for losses, two interceptions, two forced fumbles, a ffumble recovery and eight quarterback hits.ddddddddddddis versatility has allowed the Saints to play in a number of three-safety alignments on defense, with Vaccaro playing near the line of scrimmage and covering slot receivers or tight ends -- acting sort of as a hybrid linebacker and nickel back -- while fellow safeties Jairus Byrd and Vonn Bell played deeper and in roles more traditional for safeties.Veteran reserve safety Roman Harper is one player who could be called upon to play more in Vaccaros absence. New Orleans also on Friday signed a new linebacker, Travis Feeney, off of Pittsburghs practice squad.Certainly, anytime you lose a player of (Vaccaros) caliber, it affects how you go about game-planning, Allen said. That is something that, as we went throughout this week and over the last few weeks, it is something that we have had to keep in the back of our mind because you never knew when this was going to occur. It is certainly something that we have had to pay attention to over the last few weeks.Saints had coach Sean Payton said Vaccaro could have appealed, but that it made more sense for him to accept a four-game suspension now, rather than risk having a later suspension that could carry over into next season.---For more NFL coverage: http://www.pro32.ap.org and http://www.twitter.com/AP-NFL ' ' '