LAS VEGAS -- Retired boxing champion Floyd Mayweather Jr. is accused of stiffing a Las Vegas jewelry company for $1.4 million of the cost of a diamond-encrusted necklace he bought the weekend after his last fight, according to a lawsuit filed in Nevada state court.It wasnt immediately clear Tuesday if Mayweather or his legal representatives had been served with the civil lawsuit, filed Sept. 23 in Clark County District Court in Las Vegas.Mayweather Promotions chief executive Leonard Ellerbe and Mark Tratos, an attorney in Las Vegas who represents Mayweather in civil cases, didnt immediately respond to messages.The Jewelers Inc. said in court filings that Mayweather paid $1 million when he bought the $3 million necklace consisting of 72 round-cut diamonds in September 2015, and that he made six subsequent $100,000 payments.Each diamond was about 3 carats, according to the lawsuit.It alleges that Mayweather hasnt made a payment since May, and accuses him of breach of agreement and unjust enrichment.Ellerbe told the Las Vegas Review-Journal that Mayweather had no comment about the lawsuit.Mayweather, now 39, was listed by Forbes as the worlds highest-paid athlete in 2015, making about $300 million. He also topped the Forbes list in 2012, at $85 million, and 2014, at $105 million.Estimates were that Mayweather earned a stunning $220 million for his unanimous decision over longtime nemesis Manny Pacquiao from the Philippines in May 2015. He was reported to have taken home another $32 million when he defeated Andre Berto on Sept. 12, 2015, at the MGM Grand arena.Mayweather finished his career undefeated, at 49-0 with 26 knockouts.The lawsuit was the second in 11 years filed against Mayweather over jewelry. Records show that a 2005 civil action filed by another jeweler alleging that he failed to pay $124,000 for more than 20 pieces of jewelry was settled in 2006. The terms were not disclosed.A lawyer who represented the jewelry store in that case has retired and didnt immediately respond to a message. Nolan Ryan Jersey Large . 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NORMAN, Okla. -- Oklahoma has rallied to salvage what appeared to be a lost season.The Sooners entered the year with hopes of returning to the College Football Playoff, but they dropped games to Houston and Ohio State early and fell out of the Top 25. Now, No. 9 Oklahoma has won six straight to take control of the Big 12. The Sooners (7-2, 6-0 Big 12, No. 11 CFP) now must defeat their recent nemesis, No. 25 Baylor, to maintain their momentum.Oklahoma coach Bob Stoops said hes impressed that the Sooners have performed so well, given the rough start and a slew of injuries to key players, including star running back Samaje Perine.Weve been resilient, Stoops said. I still think theres more. Hopefully, to finish the season, we can be stronger and better and more consistent. I think we can keep improving. But weve been a resilient, tough-minded team to have handled what we have to this point.Baylor (6-2, 3-2) is coming off a humbling 62-22 loss to TCU , but that doesnt mean much to Stoops. The Bears have the best record in the Big 12 the past three years and have won two conference titles to Oklahomas one.Baylor is trying to overcome outside distractions. Coach Art Briles was fired in May after sexual assault allegations against some of his former players. Still, the Bears still won their first six games under acting head coach Jim Grobe, climbed to No. 8 in the AP poll and appeared to be the conferences best hope for a spot in the playoff.With additional allegations made recently and assistant coaches and staff members supporting Briles on Twitter last Friday, the Bears struggled to focus. They say they are ready for Saturday.Were beaten up, but we are not going to lie down, Baylor quarterback Seth Russell said. We are going to continue to fight.Here are some things to watch Saturday:RARE SKIDThe Bears are trying to avoid their first 3-game losing streak since the middle of the 2012 season, and they are 43-10 overall since then. Its going to be a ttough task.dddddddddddd realize that for us to go to Oklahoma and have a chance, we have to play so much better than we have this year, because were playing the most talented football team that weve faced so far, and maybe the best coached, Grobe said.SOONER DOklahomas defense was ripped for 59 points and 854 yards against Texas Tech, but the Sooners bounced back with two of their best performances of the season against Kansas and Iowa State. Baylor is a different level of opponent though -- the Bears rank sixth nationally with 541.8 yards per game.Texas Tech, that was a small bump in the road, and I feel like weve gotten past that, Oklahoma safety Steven Parker said. We play better, we practice better. This game, going into it, feel like were very confident.PERINE POWERPerine is expected to play Saturday after missing three games with a pulled muscle in his right leg. The 235-pound bruiser rumbled for 166 yards and two touchdowns in Oklahomas 44-34 win at Baylor last year. In his past six November games, he has rumbled for 1,220 yards and 14 touchdowns with an average of 8.5 yards per carry.DEEP THREATOklahoma receiver Dede Westbrook has produced one of the best seasons in school history, and hes in the running to be considered for major hardware. In six Big 12 games he has 47 catches for 1,012 yards and 12 touchdowns. He has at least 105 yards and a touchdown in each league game.LINWOOD OUTGrobe suspended running back Shock Linwood for the game, citing attitude issues. Linwood is Baylors all-time rushing leader with 4,056 yards. Terence Williams, Baylors leading rusher this season with 691 yards and eight touchdowns, will have a greater role. Redshirt freshman JaMycal Hasty has posted two 100-yard rushing games.---More AP college football: www.collegefootball.ap.org---Follow Cliff Brunt on Twitter (at)CliffBruntAP ' ' '