( CNN ) -- Track and field star Tyson Gay was handed a one-year ban by the U.S. Anti Doping Agency ( USADA ) Friday and has had to return the silver medal he won at the 2012 London Olympics . Gay , a former world 100 and 200m champion , tested positive for a banned anabolic steroid at the U.S. Championships on June 23 , 2013 and his suspension takes effect from that date -- making him eligible to compete later this summer . The standard ban for a doping violation is two years , but Gay has been treated more leniently because he co-operated with USADA , it said . `` We appreciate Tyson doing the right thing by immediately withdrawing from competition once he was notified , accepting responsibility for his decisions , and fully and truthfully cooperating with us in our ongoing investigation into the circumstances surrounding his case , '' USADA chief executive Travis T. Tygart told the organization 's official website . Gay , who has been one of Usain Bolt 's main rivals over the past few years , also accepted the forfeiture of all results and prizes dated back to July 15 , 2012 , when he first admitted using a product that contained a banned substance . That included his silver medal in the U.S. men 's 4x100m relay squad at the London Games , where they finished second to Bolt 's all-conquering Jamaican team . The shortened suspension length is subject to appeal by the IAAF and the World Anti-Doping Agency ( WADA ) but the International Olympic Committee ( IOC ) said it was satisfied with the punishment meted out to Gay . `` We note the athlete accepted responsibility for his actions and returned the medal from the London Olympic Games , '' it said in a statement . `` The IOC supports clean athletes and defends the integrity of sport against those who cheat . We will take all necessary steps with regard to the Olympic Games in line with our zero tolerance policy , and our full commitment to the protection of the clean athletes . '' Gay is the joint second fastest man over 100m in history behind Bolt , with a 9.69 seconds clocking . He won the triple of 100 , 200 and 4x100m relay gold at the 2007 world championships in Osaka . News of his positive test came on the same day that a similar outcome was revealed for former world 100m record holder Asafa Powell , shocking followers of track and field . Jamaica 's Powell received an 18-month ban for his doping offense .
Tyson Gay receives a one-year ban for doping offense . Sprinter Gay tested positive for an anabolic steroid in 2013 . Received shortened suspension for co-operating with authorities . Comment: