The World Anti-Doping Agency has opened an investigation into allegations of Russian doping at the 2014 Sochi Winter Olympics. WADA will look into claims, broadcast by CBS 60 Minutes in the United States on Sunday, that numerous Russian athletes used performance-enhancing drugs at the Winter Games.WADA president Sir Craig Reedie said: WADA will probe these new allegations immediately. Russias track and field athletes are currently the subject of a suspension which places their participation in the Rio Olympics in doubt.The ban was imposed following a WADA-commissioned independent report into allegations of drug use in athletics. Sir Craig Reedie says WADA will probe new claims And WADA is now looking into the latest claims, which Reedie described as a real cause for concern.A WADA statement read: On the basis of recorded conversations between (whistleblower) Vitaly Stepanov and the former Moscow laboratory director, Dr Grigory Rodchenkov, the broadcast claims that numerous Russian athletes were doped at Sochi, including four gold medallists that were using steroids.The broadcast also suggests that the Russian Federal Security Service (FSB) interfered with the Games anti-doping program; including, some FSB agents having been employed as doping control officers (DCOs). WADA has not yet been able to independently verify these allegations, but will now conduct further inquiries into the allegations without delay.This includes initiating the process to access the recorded conversations in which Dr Rodchenkov aired his views, as cited in the programme.Reedie added: Mr Rodchenkov was of course interviewed by WADAs Independent Commission that exposed widespread doping in Russian athletics last year; yet, regrettably, he was not forthcoming with such information related to the Sochi Games.It is surprising to hear these views so many months after the commission concluded its work. Also See: News list Schedule Results Medals table Blogs Black Friday Shoes Sale . First off, the fans ripped the Cubbies introduction of a fuzzy new kid-friendly mascot named "Clark". Black Friday Shoes Free Shipping .S. hockey team after paying his dues as an NHL general manager for more than three decades and giving up a lot of his free time to help USA Hockey. http://www.shoesblackfriday.com/ . The Croatian served 21 aces and hit 42 winners against Sijsling, who double-faulted to give Cilic a 4-3 lead in the deciding set. "All the players, they know me and they were really happy to see me and they were really happy that this is over for me," Cilic said. Black Friday Shoes Store . "We have always prided ourselves on the way we play defence. Having two big pieces back is going to be a key for us moving forward for years to come," said Knighthawks head coach Mike Hasen. Cheap Black Friday Shoes . -- The Sacramento Kings are set to become the first major professional sports franchise to accept Bitcoin virtual currency for ticket and merchandise purchases.INDIANAPOLIS -- Dale Coyne Racing has tabbed Mike Conway to drive its second entry this weekend in Detroit. Conway raced once this year for Bobby Rahal at Long Beach. He qualified fifth and finished 25th. It was his first IndyCar race since he walked away from A.J. Foyt Racing before last Septembers season finale because he was uncomfortable racing on ovals. Conway is interested in aa partial program running street and road course events.dddddddddddd The Saturday and Sunday races at Belle Isle are on a street course. Coynes No. 18 Honda was driven in the first five races this year by Ana Beatriz. She was only scheduled to run through the Indianapolis 500, and Coyne said he will be looking at several driver combinations for the rest of the season. ' ' '