RIO DE JANEIRO -- Katie Ledecky is going for a sweep of the longer freestyle races at the Olympics, a feat unmatched since another American teenager achieved it 48 years ago.Before she tries to equal Debbie Meyers golden triple, Ledecky could join the U.S. 4x100-meter freestyle relay team when the eight-day swimming competition begins Saturday.If she wins her three individual events and a relay, the 19-year-old Ledecky would take four gold medals back to her Maryland home, equaling the record for a U.S. female swimmer shared by Amy Van Dyken and Missy Franklin.She knows it, but its not whats driving her, said Bruce Gemmell, Ledeckys coach. I dont think it matters to her today. Maybe it will matter to her 20 years from now when she has kids or family to talk to about it.Michael Phelps, who knows something about golden hauls, gets started with his fifth and final Olympics on Sunday. The 18-time gold medalist is expected to be part of the mens 4x100 free relay, with the Americans challenging defending champion France.The womens 4x100 relay shapes up as the U.S. versus Australia, which won gold four years ago in London and in 2004. The Americans havent stood on the top podium spot since 1996 in Atlanta.We definitely want to get it started off right, said Amanda Weir, who is likely to be part of the relay. We always come here to win no matter what our record has been in the past.Ledecky could help them do that, likely as a swimmer in the preliminaries, which will be held in the afternoon instead of the morning. If the U.S. wins the late-night final, she would get a medal, too.Cate Campbell, the 100 free world record holder, leads the Aussie relay, having helped her team win gold in London.Over the years weve had a really healthy rivalry, she said about the United States. Weve pushed them and theyve pushed us. I dont think America would be where they are today without Australia, and America has pushed us to be the great swimming nation that we are as well.Campbell will be joined by her sister Bronte, the 100 free world champion, on the relay.Sun Yang of China goes for gold in the mens 400 free on Saturday. He has been an enigma since failing to show for the 1,500 free final at last years world championships in Russia. The womens 400 individual medley is among the four finals on the first night.The United States and Australia figure to pile up the most medals at the pool.The Americans won 31 medals, including 16 gold, in London, while Australia won 10 and just one gold. The Aussies have come on strong since then, earning 16 medals with seven golds at last years worlds. The Americans werent as dominant in Kazan, winning 23 medals and eight golds.We really are happy to see our rivals do well, especially on the womens side, Weir said. I think the men get a little more fiery.The memories made in Rio will outlast the swimming venue, a 15,443-seat temporary facility featuring 15,000 tiny holes drilled into the structure to give the arena constant air flow. Its covered in 66 panels designed by a Brazilian artist. Columns in the arenas four corners will obstruct the views of some fans. Joey Bosa Jersey . -- Los Angeles Lakers guard Jordan Farmar will be out for roughly four weeks after tearing his left hamstring. Denzel Perryman Jersey . It was Kerbers third final of the year after losing to Anastasia Pavlyuchenkova of Russia in Monterrey in April and to Petra Kvitova of Czech Republic in Tokyo two weeks ago. The 10th-ranked German improved her record in finals to 3-5. http://www.chargersauthenticshop.com/Chargers-Kellen-Winslow-Draft-Jersey/ . Pettersen, winner of last years Evian Championships, had nine birdies and three bogeys, holding off a series of challengers led by Marion Ricordeau of France. The second-ranked Norwegian made her season debut after missing the LPGA Tours opening event last month in the Bahamas because of a shoulder injury. Dan Feeney Jersey . Neymar curled home a free kick from just outside the area to put the 2014 World Cup host ahead in the 44th minute. Three minutes after the break, a simple through pass from Paulinho freed Oscar and the Chelsea star rounded goalkeeper Jung Sung-ryong to extend Brazils lead. Jason Verrett Jersey . -- Adam Snyder returned to the San Francisco 49ers this season because the offensive lineman thought it was his best opportunity to win a championship. Hawthorn coach Alastair Clarkson believes AFL umpires need to better protect star onballer Sam Mitchell from off-the-ball treatment from opposition taggers.But hes not optimistic that will happen.Mitchell was one of the Hawks best players in their qualifying final loss to Geelong but he endured a torrid evening as he was involved in several skirmishes with opponent Scott Selwood amongst others.All of the high quality players are like that, so youre just not going to win that argument, Clarkson replied when asked if he felt Mitchell deserved a better run with the umpires.We want him to have more protection, but thats the lay of the land, thats up to the umpires to decide what they do in terms of the protection of players.Hes a ball player, the off-the-ball stuff has been a bit untoward, but hes been able to cope with that for 15 years.dddddddddddd So no doubt hell be coping with it again.The Hawks face a sudden-death semifinal against the Western Bulldogs at the MCG on Friday night.Clarkson made two changes to the side that fell to a two-point loss against the Cats, regaining forward James Sicily from an illness and recalling midfielder Billy Hartung.Ryan Burton was ruled out with a calf injury, while Daniel Howe - a late inclusion against Geelong - was omitted.The Bulldogs made one forced change, bringing in Toby McLean for Lin Jong, who broke a collarbone in his sides elimination final win over West Coast. 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