The International Olympic Committee has confirmed that 23 competitors from the 2012 London Olympics have failed doping retests.The IOC said 265 London samples had been retested with improved techniques, and the 23 failures come from competitors from six countries, competing across five sports.The athletes have not been named but Sky Sports News HQ understands that no British athletes are involved. It is understood there has been no contact between the IOC and the BOA over the matter, and that no British athlete has returned a positive sample.The London athletes are in addition to the 31 caught in retests of samples from the 2008 Beijing Olympics. The Russian Olympic Committee has confirmed that 14 of those athletes were Russians.The IOC still has to retest the athletes B samples. Formal positive cases are not declared until the B samples confirm the original findings.The IOC said the retests targeted athletes who were hoping to compete at the Olympics in Rio de Janeiro in August.IOC president Thomas Bach said: These reanalyses show, once again, our determination in the fight against doping.We want to keep the dopers away from the Olympic Games in Rio de Janeiro. This is why we are acting swiftly now.I have already appointed a disciplinary commission, which has the full power to take all the decisions on behalf of the IOC. It was also revealed that one more sample from Beijing had shown abnormal parameters and would also be followed up on.The samples were re-examined after intelligence-gathering that began last August, the IOC said in a statement.It has been working with the World Anti-Doping Agency (WADA) during that period.UK Anti-Doping (UKAD), meanwhile, welcomed the reanalysis of samples from both the Beijing and London Olympics.The ability to retest samples, as a result of new intelligence or the development of new testing techniques, is a vital tool in the fight against doping in sport, said UKADs director of operations Pat Myhill.Retrospective analysis allows us to pursue those who cheat clean athletes, long after the competition has ended.It sends a clear message to those who dope - if you chose to make that choice, and think that youve got away with it, think again. We can, and will, catch you. Air Max 720 Sale Australia . By having more great seasons. 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The catch: It needs a lot of money, and it needs it fast.No. 22 Baylor | No. 24 North Carolina | Top 25No. 23: IowaLast Season: 12-2?(8-0 Big Ten West)The Hawkeyes rode their luck last year to come within seconds of securing a playoff spot. Luck might not be with them in 2016, but they might not need it. Iowa is a much stronger team, with one of the conferences best defensive tackle duos in Nathan Bazata and Jaleel Johnson, who along with middle linebacker Josey Jewell combined for 213 tackles. Iowas five Big Ten road opponents went a combined 10 -- 30 in conference play last year -- the Hawkeyes take on all of their toughest opponents at home. Fans can look forward to double-digit wins.Iowas chances to win each game 09.03 vs. Miami (Ohio): 94.7% 09.10 vs. Iowa State: 85.2% 09.17 vs. North Dakota State: 83.3% 09.24 @ Rutgers: 66.3% 10.01 vs. Northwestern: 72.1% 10.08 @ Minnesota: 66.6% 10.15 @ Purdue: 67.4% 10.22 vs. Wisconsin: 56.4% 11.05 @ Penn State: 44.0% 11.12 vs. Michigan: 33.7% 11.19 @ Illinois: 73.4% 11.25 vs. Nebraska: 52.8%Key returning players like QB C.J. Beathard, CB Desmond King and LB Josey Jewell should help the Hawkeyes stay near the top of the Big Ten West Division, but think more like 9-3 than another magical 12-0 sseason.dddddddddddd-- Brian BennettA second straight undefeated regular season might be pushing it for these Hawkeyes but, with Beathard and returning Thorpe winner King, a 9-3 season shouldnt be a problem. Iowa should remain in the conference title race until the very end. -- Josh MoyerSave for a November visit from Michigan, there once again arent a ton of roadblocks on Iowas schedule for 2016. An undefeated season will be hard to reproduce, but Beathard returns to lead an offense that is capable of going 10-2 and winning the West again. -- Dan MurphyIowa is the Big Ten West favorite because of both its talent and a forgiving schedule. Another perfect regular season is a stretch, but the Hawkeyes finish 10-2 and reach the Big Ten title game for a second straight year. -- Jesse TempleThe schedule once again sets up favorably for the Hawkeyes, so it might be a good idea nationally to prepare for another Kirk Ferentz run to the division title in the Big Ten West after an 11-1 regular season. ?-- Austin WardNo. 22 Baylor | No. 24 North Carolina | Top 25 ' ' '