RIO DE JANEIRO -- Day 11 of the Rio Games features medal action in gymnastics, track and field, boxing, wrestling and more. Here are some things to watch (all times local):GYMNASTICSSimone Biles can wrap up her remarkable time in Rio with a fourth Olympic gold medal when she competes in the floor exercise at 2:47 p.m.Biles has already earned three golds and a bronze, though her chance to become the first female gymnast to capture five golds in a single Olympics ended when she wobbled during the balance beam final on Monday and ended up with bronze.Biles is the reigning world champion in the floor exercise. Her biggest competition will come from teammate Aly Raisman, who captured gold in London four years ago. Biles and Raisman went 1-2 in the all-around competition last week.The men will wrap up the Olympics with the high bar at 2 p.m. and parallel bar finals at 3:34 p.m. Oleg Verniaiev, who came in second to Kohei Uchimura in the mens all-around, leads the field on parallel bars. Epke Zonderland of the Netherlands will try to defend his Olympic title on high bar.American Danell Leyva will compete in both finals. Hell be joined on high bar by teammate Sam Mikulak .TRACK AND FIELDAfter a day off, Usain Bolt returns to the track in his quest for more gold -- in his favorite event, too: the 200 meters.Im always confident going into the 200 meters, said Bolt, who surged past Justin Gatlin to win the 100 on Sunday. I think the 100 meters is always the hardest one for me. Going to the 200 now, Im very confident. Then again, the fastest man on the planet has never lacked for confidence. He runs in the ninth heat at 12:46 p.m.Also Tuesday, American Christian Taylor will defend his triple jump title. The competition begins at 9:50 a.m.And the Jamaicans could go 1-2 in the 110-meter hurdles, with Omar McLeod and Hansle Parchment the favorites. Devon Allen , the University of Oregon football/track standout, will have something to say about that. The finals are at 10:45 p.m.Medals also will be awarded in womens discus (11:20 a.m.), the womens 1500 meters (10:30 p.m.) and the mens high jump (8:30 p.m.).BASKETBALLThe U.S. womens team begins knockout play against Japan when the two teams play in the quarterfinals at 6:45 p.m. The Americans have won 46 consecutive games in the Olympics and are three victories away from a sixth consecutive gold medal. They cruised through pool play , winning the five games by an average of 40.8 points.The U.S. hasnt faced Japan since the 1996 quarterfinals when the Americans won by 15 points. Japan has been the surprise of the tournament, already matching its three victories in 1996 in the Atlanta Games. The Japanese also have the rare distinction of being the only team left playing in the Olympics who have beaten the U.S., although that came back in 1976.In other quarterfinal games, Australia plays Serbia at 11 a.m., Spain plays Turkey at 2:30 p.m., and France faces Canada at 10:15 p.m.BEACH VOLLEYBALLKerri Walsh Jennings and April Ross play for a spot in the gold-medal game when they meet Brazilian world champions Agatha and Barbara in the beach volleyball semifinals at 11:59 p.m.Walsh Jennings is going for her fourth gold, and Ross is looking to improve on the silver she earned when she lost to her fellow Americans in the London final. Brazil has three entries in Tuesdays mens and womens semifinals, including Alison and Bruno, who eliminated the American mens team of Phil Dalhausser and Nick Lucena in the round of eight. They play the Dutch team of Alexander Brouwer and Robert Meeuwsen at 5 p.m.VOLLEYBALLThe top-ranked U.S. womens volleyball team , which went 5-0 in Olympic group play, faces Japan in a quarterfinal matchup at 2 p.m. as the Americans try to move one step closer to the first gold in program history.Japan is arguably the best defensive team in this tournament.Two-time reigning Olympic champion and host Brazil will take on a young China team in the 10:15 p.m. match, while the upstart Netherlands women -- back in their first Olympics in 20 years and 4-1 in group play behind the Americans -- face South Korea at 10 a.m.BOXINGNicola Adams, the British flyweight who won the first gold medal in Olympic womens boxing history, opens the slate with her first bout of the tournament. She faces Tetyana Kob of Ukraine at 11 a.m.Shakur Stevenson and Gary Russell have fights early in the day for an American team trying to make up for an 0-2 effort on Monday. The main event of a 19-fight card has Brazilian Robson Conceicao fighting Frenchman Sofiane Oumiha for Olympic gold in the lightweight division. That fight starts at 7:15 p.m.TRACK CYCLINGThe track cycling program concludes Tuesday night with Britain seeking more Olympic gold. Jason Kenny is going for his third title of the Rio Games in the keirin at 6:14 p.m., Katy Marchant and Becky James are still alive in the individual sprint at 6:26 p.m., and Laura Trott is favored to defend her title in the womens omnium at 5:05 p.m. Italian Elia Viviani won the mens event Monday despite being taken out in a crash that claimed two other riders. The powerhouse British team has already won four gold medals through seven events inside the velodrome.OPEN WATER SWIMMINGA day after Brazil won its first swimming medal of the games -- a bronze in the womens open water event -- the men take to the sewage-filled waters off Copacabana beach for their 10K race.This is only the second Olympics holding competition in open ocean waters. At the first Summer Games in 1896, before custom-built pools were the norm, swimming was held in the Bay of Zea. The inaugural open water event in 2008 was staged at Beijings rowing and canoeing canal. Four years ago, the open water in London took place in the Serpentine lake at Hyde Park.Brazils Poliana Okimoto went from just off the podium to bronze when Frances Aurelie Muller was disqualified for colliding with another swimming. The first swimming medal ever won by a Brazilian woman, either in the pool or open water, eased some of the sting from a disappointing performance by the pool swimmers, who failed to win a medal at their home Olympics.---AP Summer Games website: http://summergames.ap.orgJoe Flacco Jersey . -- Tony Stewart is 20 pounds lighter and has a titanium rod in his surgically repaired right leg. Ray Lewis Jersey . LUCIE, Fla. http://www.cheapravensshoponline.com/Youth-marquise-brown-ravens-jersey/ . Toronto has dropped games to Indiana and Miami since a five-game winning streak and closed out a three-game road trip at 1-2. Ben Powers Womens 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. Jaylon Ferguson Jersey . The giant slalom world champion slipped during her first run in the morning, landing on her back and then twisting forward before getting her leg caught in the protective material on the side of the slope. FOXBOROUGH, Mass. -- New England Patriots starting defensive end Rob Ninkovich?will serve a four-game suspension to open the 2016 regular season after a positive test for a banned substance.The NFL said in a statement that Ninkovich is eligible to return from his suspension, which is without pay, on Monday, Oct. 3.Ninkovich told ESPN on Friday that he is devastated and shocked, and said he would never knowingly take an illegal substance.Few things are more important to me than my name and reputation. This might call that into question for some, which has me heartbroken, Ninkovich said. I dont want to cut any corners. I want to do things the right way, with high integrity, and thats what I have always wanted to stand for.Ninkovich, 32, has played in 116 consecutive games (including playoffs) for the Patriots since signing with the team as a free agent on Aug. 2, 2009.Any supplement Ive ever used was bought at a store. I was unaware something I bought had a substance in it that would give me a positive test because it wasnt listed [as an ingredient], Ninkovich told ESPN.One thing I have learned is that if a supplement is not NSF certified, there are no regulations that ensure that what is on thee label is 100 percent accurate.dddddddddddd That is a hard lesson for me to learn at this stage in my career, but I take responsibility for it. Its a mistake I made and it hurts that I wont be there for my teammates.A team captain in 2015, Ninkovich tore his triceps during a training camp practice with the New Orleans Saints on Aug. 9 and was in jeopardy of missing the start of the season because of the injury.He is valued for his pass-rush ability (47 career sacks, including playoffs) and toughness to set the edge against the run. Coach Bill Belichick has annually lauded Ninkovichs toughness, versatility and intelligence.The Patriots project to start veteran Chris Long, who signed with the Patriots after spending the first eight years of his career with the Rams, in his place. Jabaal Sheard is the other starter, with Shea McClellin (fifth year) and second-year players Trey Flowers, Geneo Grissom and Rufus Johnson rounding out the depth chart.My focus is on getting back to 100 percent and being the best teammate and Patriot I can be upon my return, Ninkovich said. 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