RIO DE JANEIRO -- Shortly after Claressa Shields punched her way through yet another elite opponent to reach another Olympic gold-medal bout, she spontaneously broke into song.Swaying gently to the tune in her head, the worlds best middleweight ripped through several bars of the Bill Withers classic Just the Two of Us, only with altered lyrics to reflect her shared mission with Shakur Stevenson as the only Americans left in the Rio Olympic boxing tournament.Just the two of us, building gold medals in the sky! Shields sang. Just the two of us, me and Shakur.U.S. coach Kay Koroma could only watch and smile.The thing about Claressa, when shes smiling and joking around, thats when shes the most dangerous, he said.Rio has been a song for Shields, who takes on the Netherlands Nouchka Fontijn on Sunday for her second Olympic gold medal.The rest of the worlds top boxers havent been able to wreck Shields good moods ever since she burst onto the international scene at the London Games. Her final bout in Rio de Janeiro is the culmination of a four-year stretch in which she hasnt lost a fight and has rarely even been tested -- certainly not yet at the Rio Olympics, where top female fighters only must win three bouts to claim gold.A lot of girls are here just to beat me, but Im here to win a gold medal, Shields said. Beating me is winning a gold medal to them, so they go out there and they fight me a lot harder than they did any other opponent.Shields is increasingly competing largely against her own preparation and motivation -- something she does well.She gave herself a C-minus grade for her opening bout, but she figured out why she didnt feel right against that Russian opponent. Because she can no longer stomach the food in the athletes village cafeteria after a month in Rio, she had consumed only a peanut-butter-and-jelly sandwich and some chocolate milk on the day before her first fight.She stopped eating like the college student that she recently was, eating proper meals and subsequently dominating Kazakhstans Dariga Shakimova to reach the final.Koroma and head womens coach Billy Walsh work on game plans with Shields, but her superior skills and athleticism often make it relatively easy work. With her confidence fairly bursting, Shields doesnt appear to require much help to dominate.You dont have to worry about if Im going to get out there and not let my hands go, Shields said. Thats never going to happen. I dont even have to warm up for that.Shields beat Fontijn at the world championships in May. Fontijn has a better chance than just about anybody in the world to end Shields dominance, but the talent gap between Shields and the middleweight field has been larger than in any division in Rio.Shields one-sided success and ensuing fame have been an enormous boon for USA Boxing, which is coming home from Brazil with one silver and one bronze from its men after failing to win anything in London.The rising popularity of womens boxing in general has allowed USA Boxing to get the funds to hire veteran Irish amateur coach Walsh, who oversees the entire team from his official position as the womens head coach.Walsh only got the job late last year, and his true focus is on the 2020 Olympics as he attempts to build a cohesive program. After some initial conflicts with his star, he has become a fervent backer of Shields, lauding her example to his other seven fighters.None of these guys understood what I was trying to build with Team USA when I got here, Walsh said. Claressa is the only one that caught on. It was massive. She said, `Youre trying to build a team. Exactly. Were trying to build a bond, and she sees it better than anyone. Cheap Air Jordan 13 Wholesale . World champions Tatiana Volosozhar and Maxim Trankov of Russia won the gold medal with 237.71 points, Moore-Towers and Moscovitch followed at 208.45 and Ksenia Stolbova and Fedor Klimov of Russia were third at 187. Cheap Air Jordan 13 China . -- The Magic have their first victory of the new year. http://www.airjordan13discount.com/ . After Gasquet beat fifth-seeded Ivan Dodig of Croatia 7-5, 6-3, Tsonga followed up with a 6-7 (3), 6-2, 6-2 win against sixth-seeded Edouard Roger-Vasselin in an all-French match. Discount Air Jordan 13 Wholesale . Cote was eligible to become a free agent Feb. 15. Cote helped running back Jon Cornish run for a league-high 1,813 rushing yards en route to being named the leagues most outstanding player. Cheap Air Jordan Retro 13 . With his new coach and six-time Grand Slam singles champion Boris Becker watching him during an official match for the first time, Djokovic appeared tentative early against the Slovakian player, who often appeared content to keep the ball in play. Colorado controls its destiny in the Pac-12 South Division.?? After Utah lost to Washington while the Buffaloes enjoyed a bye week, 21st-ranked Colorado (6-2, 4-1) is alone in first place in the South heading into Thursday nights home game against UCLA, starting at 9 p.m. ET.UCLA (3-5, 1-4) was the preseason pick of the leagues media to win the division, but the Bruins have struggled in the run game and likely will be without starting quarterback Josh Rosen for a third consecutive game because of a nerve problem in his throwing shoulder.With a win, the surprising Buffaloes will match their conference victory total from their first five seasons in the league combined.?? Colorado already has accomplished one goal by qualifying for a bowl game for the first time since 2007, but bigger prizes are within reach.Theyve got everything in front of them theyve always dreamed of, and theyve worked so hard to get here, they dont take it for granted, said Colorado coach Mike MacIntyre. Its not like its a common occurrence. ... These guys will stay on each other, which is awesome.Colorado, which is coming off a 10-5 victory over Stanford on Oct. 22, has three of its final four games at home. Utah and USC, both 4-2 in the conference, are the only realistic challengers to the Buffaloes. Every other team in the South has at least four league losses.Colorado has great balance. Senior quarterback Sefo Liufau directs an offense that is 19th nationally with 495.8 yards per game. The running game has been strong; the Buffs have rushed for 247, 260, 260, 263, 315 and 224 yards in their six victories, while being held to 64 and 96 in their two losses.The Buffs defense is 12th nationally, allowing 307.8 yards per game.UCLA, meanwhile, is trying to find balance after basically abandoning the run game in its most recent game, a 52-45 loss to Utah. The Bruins running backs carried just 10 times while quarterback Mike Fafaul attempted 70 passes.Were always grinding, said offensive coordinator Kennedy Polamalu.Weve simplified the task, and I really believe with the young men we have all the way around -- from the linemen, tight ends, receivers and the runners -- were getting better. I really want balance to help our quarterback.Its not like UCLA doesnt have talent at running back.Sophomore Soso Jamabo was arguablyy the top running back prospect in the 2015 class.dddddddddddd Nate Starks was a four-star recruit. Bolu Olorunfunmi has done some nice things.But Jamabo and Starks have each been slowed by injuries a various times, including against Utah. UCLAs top three running backs have rarely been available/healthy at the same time this season.The Bruins are last nationally in rushing at 85.5 yards per game.Still, UCLA hasnt been far off this season, losing its five games by a combined 32 points.We havent won, but we havent been blown out, said Bruins coach Jim Mora. Our guys fight. They are a bunch of fighters. I really respect that about them.Fafaul, a fifth-year senior and former walk-on, completed 40 of 70 passes for 464 yards, with five touchdowns and four interceptions, in the loss to Utah on Oct. 22. His focus in practice has been efficiency -- not forcing anything. Fafaul has thrown eight interceptions in 122 pass attempts.Colorado ranks second in the Pac-12 with 11 interceptions. Cornerback Tedrick Thompson has four of them. The other corner, Chidobe Awuzie, is a potential mid-round draft pick, according to NFLDraftScout.com.The Buffaloes have held two of five conference foes without a touchdown this season.Liufau, who missed three starts this season because of an ankle injury, has taken every snap in the past two games. He is riding a school-record streak of 148 consecutive passes without an interception.Colorado running back Phillip Lindsay is third in the conference with 93.1 rushing yards per game. He has rushed for 350 yards in his past two outings.To be able to just watch our running backs break big runs, I know I dont have to do as much, Liufau said. I dont have to go out there and think that I have to make play after play after play just to keep us in a game.UCLAs run defense has been good at times this season, but the Bruins allowed Utahs Joe Williams to run wild for 332 yards.The Bruins have won all five meetings with Colorado in conference play, but the past two were decided by four and three points.I think they have been making steady progress with Coach Mac, Mora said. The last two years, they have been great games. We kind of squeaked them out. ' ' '