Devendra Jhajharia became the first Indian to win two gold medals at the Paralympics after he broke his own world record to clinch the top honours in the mens javelin throw F46 category in Rio on Tuesday.Jhajharia, whose previous best was 62.15 metres (achieved in the 2004 Games), improved the mark with an attempt of 63.97 metres at the Olympic Stadium. 17 year-old Rinku, finished fifth in the same event with a personal best throw of 54.39m.?Sundar Singh Gurjar, who was the third Indian in the event and the current world record holder, did not start in the competition.Chinas Guo Chunliang won silver with a throw of 59.93 metres, while Sri Lankas Dinesh Herath won bronze with a throw of 58.23 metres.The F46 category includes athletes with upper limb(s) deficiency, impaired muscle power or impaired range of movement.Jhajharia won his previous gold at the 2004 Athens Games. His category was not a part of the the 2008 and 2012 Olympics.With this, Jhajharia is now the only Indian to win two golds in an individual event at the Olympics or Paralympics.His left arm had to be amputated after he accidentally touched a 11,000 volt live cable at the age of eight.He is coached by Satyapal Singh and is a Padma Shri awardee. A former world record holder in the event, he won silver at the 2015 World Championships with a throw of 59.06 metres.India now have two gold, one silver and one bronze in the ongoing edition of the Games. Their medal tally in this Olympics matches their best tally of four medals at the 1984 New York Games.Mariyappan Thangavelu?had earlier won gold in the mens high jump, while Varun Bhati had secured a bronze in the same event. Deepa Malik then won a silver in the womens shot put event to add to the tally.In other events, Suyash Jadhav finished 6th in his heat in the mens 200m individual medley - SM7 category and failed to qualify for the final. 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Scarpe Air Max 720 Outlet . Vettel, who has already clinched his fourth straight F1 title, enters the finale with a chance to equal Michael Schumachers 13 victories in a year and match the record of nine consecutive wins by Alberto Ascari in the 1952 and 1953 seasons. NEW YORK -- At 19, Jared Donaldson is the youngest American man in the U.S. Opens third round since 2007. A key part of his growth as a tennis player happened in another country, though.When he was 14, Donaldson left home to train in Argentina, so he could work on his game on clay, improve his footwork and get lessons on how to use spins on his shots.He learned more, too, during the 2 1/2 years he was there.The biggest takeaway from me in Argentina was how focused and dedicated those guys were training. They were so serious. I think it was really eye-opening for me. The fact that they work so hard, even when they were tired. Clay court is so physical, said Donaldson, who is ranked 122nd and got through qualifying to reach the main draw at Flushing Meadows. It put me in a pro mentality when I was very young.Heading into Saturdays third-round match on Court 17 against 21st-seeded Ivo Karlovic of Croatia, Donaldson already has enjoyed the best week of his nascent career. Not only did he collect the first two Grand Slam victories, but they came against a couple of established players, 12th-seeded David Goffin of Belgium in the first round and Viktor Troicki of Serbia in the second.And even if other U.S. teens have drawn more attention recently -- a pair of 18-year-olds, Taylor Fritz and Frances Tiafoe come to mind -- Donaldson has big things in mind.I want to be top 10, top 5, No. 1. Eventually, if I get to that ranking, Ill have enough attention, almost too much attention, he said. I just have to make sure that I stay focused on my game, try not to let the outside factors kind of dictate how I play or act. I just have to keep improving.To that end, he started working with former pro Taylor Dent as his coach, initially aiming to serve better. But Donaldson credits Dent -- and his father, Phil, also a former player -- with improviing other aspects of his play, also.ddddddddddddAll the kind of things Im doing out there now is a reflection of (Taylors) influence on me, coaching with me, working with me, Donaldson said. I owe a lot to him.Karlovic will present a challenge when it comes to returning serves: The 6-foot-11 Croatian, who beat American Donald Young in the second round, set a U.S. Open record with 61 aces in his first-round match Tuesday.Here is what else to watch Saturday at the U.S. Open:WILLIAMS SISTERS: Once again, both Williams sisters will be in action on the same day -- and in the same arena, Arthur Ashe Stadium. No. 1 seed Serena Williams goes first, facing 47th-ranked Johanna Larsson of Sweden in the afternoon. No. 6 Venus Williams plays at night against No. 26 Laura Siegemund of Germany. While Serena is bidding for a record 23rd Grand Slam singles title, and Venus owns seven, neither Larsson nor Siegemund ever has been as far as the fourth round at any major.KYRGIOS IN SPOTLIGHT: In the final match under the lights in Ashe, 14th-seeded Nick Kyrgios gets his chance on center stage, facing 63rd-ranked Illya Marchenko of Ukraine. Kyrgios is among the most talented -- and moody -- men on the tennis tour, as likely to hit a `tweener as fantastic as Rafael Nadals from Friday as he is to throw a racket or appear to give up mid-match.MURRAY VS. LORENZI: As 2012 U.S. Open champion Andy Murray tries to become the fourth man in the Open era, which dates to 1968, to participate in all four Grand Slam finals in one season, he takes on Italys Paolo Lorenzi, who is ranked 40th and will be playing in a third-round match at a major for the first time.---Follow Howard Fendrich on Twitter at http://twitter.com/HowardFendrich ' ' '