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RIO DE JANEIRO -- Juan Martin del Potro ended Rafael Nadals bid for an unprecedented second Olympic singles gold medal in a thrill-a-minute semifinal, then celebrated as if the title were already his, kneeling to kiss the court before leaping into the stands.Del Potro, who earned a bronze for Argentina four years ago, will add a silver or gold to that after advancing to the Rio de Janeiro Games final by coming back to stun 2008 champion Nadal 5-7, 6-4, 7-6 (5) in more than 3 hours Saturday.Both of us, Nadal said, played a very high level.Using the same ferocious forehands that carried him past No. 1 Novak Djokovic in the first round a week ago, 2009 U.S. Open champion del Potro now will try to pull off a third surprise on Sunday, when he meets defending champion Andy Murray in the best-of-five-set final.It means something very, very big in my career. It would be the same as the U.S. Open. Maybe even better, said del Potro, whos fallen to 141st in the rankings after three operations on his left wrist, which he uses for a two-handed backhand.I didnt expect to reach the final, beating Djokovic and Rafa, del Potro said, but I did, and I get a medal, and its amazing for me.The No. 2-seeded Murray earned a gold in singles and a silver in mixed doubles for Britain at the 2012 London Games.Hes the favorite for sure, del Potro said. Hopefully I can run like I did today.No tennis player has won two Olympic singles golds, let alone two in a row, as Murray is attempting to achieve.It would mean a lot, obviously, Murray said after beating fourth-seeded Kei Nishikori of Japan 6-1, 6-4 to stretch his winning streak to a career-high-tying 17 matches. Its obviously not an easy thing to do. Thats why its not been done before.Standing in Murrays way now will be del Potro, whose wrist problems forced him to miss 2+ years worth of Grand Slam tournaments.He showed signs of his resurgence by beating two-time major title winner Stan Wawrinka at Wimbledon in June, then used all of his 6-foot-6 frame to produce intimidating forehand after forehand that Djokovic couldnt fend off. That same formula worked against Nadal, with 18 of del Potros 19 groundstroke winners coming off his preferred wing.Its been a tough road for del Potro, who got down on his back, spread-eagle, near the Olympic logo in the main stadium after the semifinal ended with Nadal sailing a forehand wide. Moments later, del Potro planted a smooch on the dot atop the middle letter of Rio near the five rings.And to complete his rejoicing, del Potro jumped into the front row for a group hug with some of the thousands of flag-waving, name-chanting fans who rooted so vociferously for their man.With their blue-and-white flags and national soccer team jerseys, the Argentines in the crowd supported him with choruses of Ole, ole, ole, ole! del Po! del Po! -- often drawing boos or shushes from Nadals backers. The Spaniards chimed in, too, shouting Na-dal! Na-dal!All the cacophany created occasional delays between points, prompting chair umpire James Keothavong to ask for quiet.Nadal, a 14-time Grand Slam champion, earned the singles gold medal for Spain eight years ago at the Beijing Games, but sat out in 2012 because of a knee injury. He added a doubles gold on Friday, teaming with his good pal Marc Lopez. But instead of another medal of that color, he will try to go home with a bronze by beating Nishikori on Sunday -- not bad, considering Nadal missed 2+ months with an injured left wrist.Nadal got broken to trail 5-4 in the third set, allowing del Potro to serve for the match. Nadal broke right back at love, with the help of a couple of superb shots he marked with more than a half-dozen fist pumps apiece. In the next game, del Potro held three break points at love-40, but Nadal held for a 6-5 lead.In the tiebreaker, del Potro went up 5-2 with -- what else? -- a forehand winner, then earned a pair of match points with a 127 mph ace. He converted the second on a miss by Nadal, who made only six unforced errors in the first set and 25 over the last two.I gave it all I had, Nadal said, and the only thing left to do is to congratulate del Potro for his victory.The most memorable moment of Murrays straightfoward win over Nishikori came right at the end.Serving for the victory, Murray came up with a tremendous down-the-line backhand passing winner on a 23-stroke exchange, stumbling as he hit the shot and winding up sitting right there on the green court. When he realized hed won the point, he raised a fist, then stood and motioned to the crowd for more noise.That gave Murray his third match point, which he converted with a service winner. He yanked off his white hat and bellowed.Bit of a lucky shot, Murray said. I didnt even see it land, so I didnt know whether it was in or not. Thankfully, it was good.---Follow Howard Fendrich on Twitter at http://twitter.com/HowardFendrich Zapatillas Nike Air Max Baratas Online . Peter Holland and Brad Staubitz were sent to Toronto on Saturday as the Maple Leafs traded defenceman Jesse Blacker and draft picks to the Anaheim Ducks. Air Max Venta Online . Coach Mike Munchak says Fokou stretched ligaments in his left knee Oct. 13 against Seattle, which could keep out up to five weeks even though the linebacker didnt need surgery. http://www.airmaxbaratasoutlet.es/ . Shot outdoors against the stunning backdrop of Banff, Alta., the networks 30-minute original production airs tonight at 8pm et/5pm pt on TSN2. The four All-Star teams will play for $100,000 in prize money during TSNs annual skins game, airing live this weekend on TSN from The Fenlands Banff Recreation Centre. Air Max Outlet España .ca! Hi Kerry, Heres an interesting one. I know its common knowledge that all players are responsible for their sticks. We witnessed that when Zack Kassian hit Edmontons Sam Gagner in the face after a missed check. Nike Air Max Ofertas .com) - Rafael Nadal, Andy Murray and Roger Federer were easy first-round winners Tuesday at the Australian Open. RALEIGH, N.C. -- A magistrate issued an arrest warrant Tuesday for a North Carolina football player accused of sexual battery and assault on a female student in February.The warrant charges Allen Artis, a 21-year-old junior linebacker From Marietta, Georgia, with two misdemeanors and says he had sex with the woman against her will when he should have reasonably known that the other person was mentally incapacitated and physically helpless.The woman, Delaney Robinson, said she had become intoxicated after being out with friends and was unable to consent.The Associated Press typically doesnt identify alleged victims of sexual assault, but Robinson held a news conference Tuesday, saying she filed for the misdemeanor charges after police and prosecutors indicated there wasnt enough evidence to pursue felony charges.Artis could not be reached for comment. He did not practice Tuesday and was indefinitely suspended under a university policy that applies to athletes charged with misdemeanors, team spokesman Kevin Best said.Artis attorney did not return a message.Robinsons lawyer said campus police botched the handling of a rape kit and the questioning of Artis.Robinson, 19, said a video of that questioning angered her.Rather than accusing him of anything, the investigators talked to him in a tone of camaraderie. They provided reassurances to him when he became upset, even laughed with him when he told about how many girls phone numbers he was able to get on the same night, the sophomore said as her father was seated next to her. I was treated like a suspect.Orange County District Attorney Jim Woodall said no final decisions have been made on whether to prosecute, but Robinsons attorney Denise Branch pointed to an Aug. 2 email she received from one of Woodalls assistant prosecutors about the felony charges.As to a charging decision, that determination is made primarily by the investigating agency, in this case, UNC Public Safety, Assistant District Attorney Jeffrey Nieman said in the email. UNC DPS has made clear their determination that the evidence does not support criminal charges, and our review of the investigation does not lead us to advise or otherwise take action to the contrary.dddddddddddd.Woodall said he spoke Tuesday with campus police chief Jeff McCracken to confirm investigative efforts are continuing. The detective on the case consulted with Woodalls office as recently as late last month, the prosecutor said.At this point, were waiting on additional evidence, Woodall said.Woodall emphasized that winning a conviction on felony charges carry a high bar of evidence.Campus police had no comment. University officials also refused to respond to questions, instead issuing a statement that the school takes all allegations about sexual violence or sexual misconduct seriously.These matters are complex and often involve multiple agencies including law enforcement. While the university always tries to complete an investigation as quickly as possible, our priority is to ensure that the factual investigations are complete and conducted in a fair and thorough manner, campus spokesman Joel Curran said in the statement.Two years ago, UNC-Chapel Hill revised its policy on discrimination and harassment, including sexual assault and sexual misconduct after four current and former students and a former administrator accused the school of underreporting sexual assault cases for 2010 in an annual report to the federal government. Their complaint also alleged that campus officials allowed a hostile environment for students reporting sexual assault. The university denied underreporting crimes.Artis is a reserve who has one tackle in two games this season for the Tar Heels (1-1). He played primarily on special teams last year and had 19 tackles during his first two seasons.Coach Larry Fedora said in a statement that he was aware of the charges but couldnt comment.---Follow Emery P. Dalesio at http://twitter.com/emerydalesio. His work can be found at http://bigstory.ap.org/content/emery-p-dalesio.---Beard reported from Hillsborough, North Carolina. ' ' '