a banned substance the international olympic committee is awaiting the results of the big sample or the court of operate arbitration for sport has launched a doping procedure alexander crucial netscape has won a bronze medal with his wife in mixed doubles curling has tested positive for mel don t you if confirmed it will be a major blow to russia s efforts to emerge from a drug cheating scandal crucial netscape was travelling to so. has come to seoul a big i will be sent home if he s a failed test is confirmed. so let s get the latest on this the rest of the big story from john from the w. sports max metal welcome not just with this suspected doping mill donja is the substance what is it it s actually a heart medication and in russia or in many other countries and. you can get it over the counter often without prescription and it increases blood flow primarily but for an athlete it also improves stamina and improves exercise capacities so it