No American boxer has ever won two Olympic gold medals, but?Claressa Shields?is on the doorstep of history.Shields, the heavy pre-tournament favorite to repeat her gold-medal performance from the 2012 London Games, cruised to a four-round unanimous decision against?Dariga Shakimova, of Kazakhstan, on Friday in their 165-pound semifinal match at the Rio de Janeiro Olympics.Shields, 21, of Flint, Michigan, will take on?Nouchka Fontijn, of the Netherlands, for the gold medal on Sunday afternoon.As she did in her quarterfinal match Wednesday against Russias Iaroslava Iaukushina, Shields was once again dominant in her second bout of the Rio Games.Shields, also the reigning world amateur and Pan American Games champion, started fast, going straight at Shakimova to make her intentions known early on. She fired right hand-left hook combinations throughout the fight, of which she controlled virtually every moment.At one point, Shields dropped her hands, daring Shakimova to come at her. When she did, Shields nailed her, backing her into the ropes.She landed punches to the head and body and never let up. As she did in the quarterfinal bout, Shields hurt her opponent with a left hook in the final seconds of the fight, forcing the referee to issue Shakimova a standing eight count.Shields was a tad rusty in her quarterfinal bout and gave herself a C when asked to grade her performance. She was much happier with the way she fought against Shakimova.I give it an A-minus, Shields said. I did great. I went out there and showed my skill. I went out there and showed my class. I showed I was the better, stronger and more skilled fighter. I actually could have stopped her, but I was having so much fun, I was like, Why do that?I decided to go out there and have fun in the rest of the rounds. I was able to start seeing a whole lot of shots come open in the third round. When she came out there in the fourth round, she knew she was down, so she started to come forward a little more, and I was able to counter and get her from there. I know I made it look easy, but thats because I did what I was supposed to do last night. I ate and I drank Powerade, a lot of water and I slept. I felt great. I felt energized. Im in the finals, but thats not enough. We still have one more.Shields said she began the fight with a more technical approach to see what Shakimova had for her. When she realized it was not much, she became more aggressive.In the first round, I was a little bit technical, Shields said. When I started seeing the openings, I started landing and landing. When she started to hold me, I would still punch her on the inside. I started going under her arms, around her arms. Anyway it went I was able to land my shots. I was landing some pretty hard shots. I think shes pretty brave for being able to stand up to those shots.Shields may have won both of her Olympic fights handily so far but she has one more win to achieve her goal of defending the gold medal.A lot of girls are here just to beat me, she said. Im here to win a gold medal, so them beating me is winning a gold medal to them, so they go out there and they fight a lot harder than their other opponents.Shields, who ran her record to 76-1, said a second gold medal will secure her legacy as the unquestioned greatest female fighter in the brief history of womens amateur boxing.The legacy is definitely important. I want to show that women boxers need to be respected on the amateur level and the professional level, she said. Also that people that come from where Ive come from or come from an area thats similar, dont let your surroundings create who you are or what your parents did or didnt do control who you are. Your life depends on your decisions and it depends on what you want to do.Growing up in Flint, there was so much darkness around me, but I still had a few good people around and thats how I was able to see things and become the person I am. I just want to show people that when you make your own decisions for your life, sometimes it plays out the way you want it to. I just want to help people, and I want to help them because what I grew up with and what I had to overcome was difficult, but look where I am now.The final against Fontijn -- who defeated Chinas Li Qian in the other semifinal -- will be a rematch from their bout at the world championships, which Shields won.Shes a really great fighter, Shields said. Shes very tall. I dont think she has the tools to beat me, but Im quite sure she went home and she worked on a few things. I worked on a few things also. Im definitely going to go out there and give it 300 percent and hopefully shes going to give her 300 percent. Let the best woman win. Tarvarius Moore Super Bowl Jersey . The winner Saturday will remain in the elite 10-team field next year. "We talked about wanting to be disciplined and stick with our game plan and good things will come," Draisaitl said, who had two goals for the victors. C. J. Beathard Super Bowl Jersey . -- Teemu Selanne scored the first goal of his 22nd NHL season, and the Anaheim Ducks extended the best start in franchise history with their fifth straight victory, 3-2 over the Calgary Flames on Wednesday night. http://www.thesf49ersshoponline.com/Youth-Colin-Kaepernick-49ers-Jersey/ . LOUIS -- Rookie Tavon Austin has missed another day of practice, lessening the odds hell be ready for the St. Deion Sanders Super Bowl Jersey . Hey!" The lower tier of the School End of Queens Park Rangers Loftus Road was packed solid with a very festive-sounding Chelsea choral section in this particular part of South Africa Road London, W12. Weston Richburg Super Bowl Jersey . Nigeria beat surprise package Ethiopia 2-0 in the second leg of their playoff for a comfortable 4-1 aggregate victory. Victor Moses converted a 20th-minute penalty after an Ethiopian handball, and Victor Obinna made certain of Nigerias place in Brazil with his powerful free kick in the 82nd at UJ Esuene Stadium.The Premier League Darts 2016 champion will be crowned on Thursday night - but Wayne Mardle reckons he knows who will win! Road to The O2 How did the four semi-finalists get so far? Michael van Gerwen plays Adrian Lewis before Phil Taylor meets Gary Anderson in the semi-finals - live on Sky Sports 2 HD at 7pm - before the winners will collide in the final.Without further ado, heres Sky Sports expert Mardle picking his winner... Michael van Gerwen v Adrian LewisWayne said: I think Adrian will perform, this will not be plain-sailing for Michael. I wont tell lies and say Adrian is playing as well as Michael because clearly, he is not. Relive some classic encounters between MVG and Jackpot The likelihood is that Michael scores more consistently, not better. There will be legs where theyre both sitting on 41 or less after nine darts, and Adrian must put Michael under pressure. He must let Michael know that he cant run away with it.Adrian needs to take out the 104s and the 88s - if those combinations are not at their best hell get beaten. Michael is the one to stop, and thats no shock. Michael van Gerwen hits a bullseye checkout The extra legs benefit Michael. The longer format gives the better player a bigger chance of winning. If its over one leg, I would have a chance against Van Gerwen. Over 21 legs its unlikely, over 101 legs I would have no chance.Prediction: 10-8 to Van Gerwen. It will be close and it wouldnt be a major shock if Adrian won, but I dont think he will.Sky Bet odds: Van Gerwen 10-8 - 9/1 Phil Taylor v Gary AndersonWayne said: Ive been in turmoil over this. This is just whoever plays better on the night - theyve both been there, seen it, done it. Watch the winning leg between Phil Taylor and Raymond van Barneveld Gary is playing better than Phil and will feel bettter about his game.dddddddddddd. But Phil can be playing poorly and still pull something out. Lets not think Phil is going to get annihilated.But of the two, Gary is playing better. Phil can produce things that leave you in awe but Gary has more gears. Gary can go from average-to-brilliant in a leg-and-a-bit, whereas Phil gets stuck in a rut. Gary Andersons win over Raymond van Barneveld If Phil starts off in a rich vein of form and has a swagger, he will be hard to stop.Prediction: 10-9 to Gary, on the basis that Phil is not as composed as he once was. At the end of these long matches, you need composure. Gary has shown incredible composure in the latter part of the season.Sky Bet odds: Anderson 10-9 - 9/1Waynes final: Michael van Gerwen v Gary AndersonWayne said: Gary loves playing Michael. It switches him on, it gets him salivating, he relishes it! Could MVG and Gary Anderson meet for a third time in the PL season? Gary is odd because he isnt afraid to lose. A lot of players protect themselves against the very best, so if its 2-2 they think its the most important thing in the world to hold throw.Gary will think if I get broken Ill just try to break back as best I can. Gary oozes the confidence that comes with winning two World Championships and a Premier League - he has grown so much in three years. Michael van Gerwen beat Gary Anderson in a thrilling contest in Newcastle Prediction: Michael wins but Gary will push him the whole way. I expect a last-leg thriller! The worlds best player will beat the worlds second-best player. Michael will take out 116 with Gary sitting on tops!Sky Bet outright odds: Van Gerwen 8/13, Taylor 100/30, Anderson 11/2, Lewis 9/1Watch Premier League Darts on Thursday, live on Sky Sports 2 HD from 7pm. Or watch for £6.99 without a contract, on NOW TV. Also See: Darts hidden helpers Sky Live: PL Darts Road to The O2 MVG quickfire quiz ' ' '