Olympic hopeful Nick Dempsey is concerned his bid for gold at the Rio 2016 Olympic Games will be undone by a plastic bag floating in polluted waters.Britains sailors have spent a lot of time training in Guanabara Bay, trying to predict the climate patterns, tides and currents to aid their bid for glory next month.Yet Dempsey, who has been to Rio four times this year for two-week stretches, reckons the water quality is deteriorating and that someones medal chances in the RS:X mens windsurfer class in which he competes will be ended by debris in the water.Norwich-born Dempsey, who claimed silver at the London 2012 Olympics, said: Someone will lose a medal because of hitting something in the water.Its hitting the plastic bags in the water thats the problem. You stop, thats 10 places gone and youre not getting that back.Its going to happen -- its just how many times it happens to you. Its just going to be luck as to who gets the most plastic bags, hits a crate and that sort of stuff.Polluted waters can cause illness, too, and Dempsey, who returned from his most recent trip last Thursday, has not noticed an improvement despite the Games looming large.He added: Theres no improvements. Its worse. It was probably the worst its ever been last week. Its just rubbish in the water, everywhere. Its a bit of a nightmare. Theres nothing [the Rio 2016 organisers] can do about it. Its a huge, massive infrastructure problem.Dempseys training includes dealing with hitting debris, which is not difficult to incorporate when it happens so often.It happens every day in training, maybe three times that were racing that we have to stop, he added. Its become such a part of it that we do practice stopping, getting something off quickly and going again.You have to completely stop, reverse, go sideways and it generally comes off straight away. Its quite a slow process. Its going to happen at a crucial moment. Youve just got to get it off quickly.If it happens at the start line you will not finish top 15. Thats your race done.Windsurfers are affected more by the debris due to the light weight of their vessel, while dinghy sailors can be soaked due to their low position on the water.?The British sailors are doing anything possible to combat the threat of illness and expressed regret more has not been done to clean up the bay.Nick Thompson, world champion in the laser, said: When it rains a lot theres a lot of pollution in the water.Its a bit of a shame they havent taken the opportunity to clean the waters up a little bit more.Hannah Mills, London 2012 silver medalist in the 470 with Saskia Clark, said: Were a bit sad that hasnt happened.British Sailing team manager Stephen Park hopes a final clean-up will still take place and says that contingency measures are available so the level of debris does not affect the racing unduly.Some of that rubbish tends to lie in particular areas because of the way the water moves, Park said.If youve got to go across that line, as you approach that point youre looking closely in the water to see if you can avoid something.World Sailing are very conscious of that and if they think the rubbish is particularly bad, theyll probably move some racing to different courses. And, in theory, the Brazilians are going to do more to clean the courses.It is Brazil, they do have a habit of doing things very last minute. Well wait and see.? Marvin Williams Jersey . This should be celebrated because it will not always be this way. With the amount of money given to players by their clubs these days, it is a wonder that so many of those teams allow the sport to continue to take away many of their assets so they can play for a different team in the middle of their season. Malik Monk Hornets 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. http://www.hornetsteamproshop.com/Cheap-Frank-Kaminsky-Hornets-Jersey/ . Thousands of fans at Mosaic Stadium will be cozying up to each other in an effort to stay warm in chilly temperatures and block the Prairie wind that locals say can knock your socks off. Dell Curry Jersey . -- When the Florida Panthers fell behind by two goals in the first period to the top team in the NHL, it appeared they were on their way to yet another loss. Michael Kidd-Gilchrist Hornets Jersey . -- San Francisco 49ers linebacker Ahmad Brooks was fined $15,570 by the NFL on Wednesday for his hit on Saints quarterback Drew Brees last Sunday. MADISON, Wis. -- Nebraska has a prime-time opportunity to silence the doubters.To do that, the seventh-ranked Cornhuskers must prove themselves on Saturday against a team that has thrived all year long on proving its own detractors wrong.Tested by a rigorous schedule , No. 11 Wisconsin hopes to topple another top 10 opponent when Nebraska visits raucous Camp Randall Stadium.I feel like were the underdog every week, honestly. Weve been getting picked to lose I think probably 75 percent of our games, so were used to it, Nebraska quarterback Tommy Armstrong Jr. said.Im pretty sure they probably have us losing (to Wisconsin), but like any other week, were ready for them, Armstrong said.The leaders of the in the Big Ten West Division, the Cornhuskers (7-0, 4-0) are off to their best start in 15 seasons. But they could use a statement game on the road to pad their playoff resume. Their biggest win was a 35-32 win at home over then-No. 22 Oregon in Week 3.Otherwise, coach Mike Rileys team has drawn skeptics for closer-than-expected victories against what should have been overmatched opponents.Wisconsin (5-2, 2-2) knows what its like to be doubted.The Badgers have endured a tough schedule that has already included four top 10 teams and a trip to Iowa. Their two losses have come to Michigan and Ohio State by a combined 14 points.Now the Badgers have to prove themselves yet again. Their tough defense will play its first game without its leading tackler, inside linebacker Jack Cichy , who has a torn pectoral muscle.Were still going to need his presence on the sideline, outside linebacker Vince Biegel said. He was our energy to our defense, were still going to need him to be that person if we want to get where we want to be at the end of this season.With two losses already in conference, the easiest way for Wisconsin to return to the Big Ten title game is to win its final five games, starting with Nebraska.Other notes and things to watch on Saturday evening:WISCONSIN DEFENSEBesides Cichy, Wisconsin will also be without space-eating nose tackle Olive Sagapolu for a second straight game. But the Badgers have weathered injuries well under coordinator Justin Wilcox.Ryan Connellly and Leon Jacobs should be capable fill-ins for Cichy.dddddddddddd Starting cornerback Derrick Tindal (right leg) has also been cleared after getting hurt last week against Iowa, and theres a chance that the secondary could get a boost with the return of third cornerback Natrell Jamerson. He has been out since Week 2 with a left leg injury.WESTERKAMP WORLDNebraskas offense should be replenished with the return of senior receiver Jordan Westerkamp, who has missed two games with a back injury. He has a team-high four touchdown catches.Were going to be stronger. I think that our guys can win and make plays, so I feel great about that group, Riley said.WELL-ROUNDED QBThe dual-threat Armstrong needs 11 yards of total offense to become the 11th player in Big Ten history to pass 10,000 for his career. Hes also 244 yards from setting the school career record for total offense. After missing the Ohio State game and J.T. Barrett because of a foot injury, Biegel is eager to get another shot at stopping a mobile signal-caller.WRINKLESCredit Wisconsin coach Paul Chryst with coming up with different ways to spice up the offense the last couple weeks. Two weeks ago against Ohio State, the Badgers dusted off the jet sweep with receiver Jazz Peavy and got good results. Last week against Iowa , Chryst used backup quarterback Bart Houston for a couple series against Iowa.Houston, who is more mobile than starter Alex Hornibrook, led the Badgers on a touchdown drive. The offensive-minded Chyrst probably has a new wrinkle or two ready for Nebraska, too.RED ZONEThe Badgers have been beset by problems in the red zone, where they have converted on 75 percent of drives inside the 20. Theyre ranked 112th out of 128th FBS teams. Wisconsin is also looking to clean up fumbles, penalties and other mistakes that slow the offense.Theres execution and those are things that weve got to own, Chryst said, and it can be the difference between winning and losing.---More AP college football: www.collegefootball.ap.org---Follow Genaro Armas at: https://twitter.com/GArmasAP ' ' '