Men's 4x100m Relay Final London 2012 - Usain Bolt, Yohan Blake, World Record (HD) <br />The entire United States 4x100m relay team have been tripped of their London 2012 Olympic silver medals as a consequence of Tyson Gay's ban. <br />Former 100m and 200m world champion Gay was suspended for a year after testing positive for a banned anabolic steroid. <br />The 32-year-old returned his London 2012 medal when his suspension was announced in May 2014. <br />Now the International Olympic Committee has told US Olympic bosses that the whole team must return their medals. <br />The IOC wrote to the US Olympic Committee on Wednesday, telling them to collect the medals from Trell Kimmons, Justin Gatlin, Ryan Bailey, Jeffery Demps and Darvis Patton. <br />"We will begin efforts to have the medals returned, and support all measures to protect clean athletes," said a US Olympic Committee statement. <br />Kimmons and Bailey ran with Gay in the final, as did Gatlin, who has served two doping bans, including a four-year suspension between 2006-2010. <br />Gay's results from 15 July 2012 - the date he first used a product containing a banned substance - were annulled. <br />His one-year suspension was backdated to 23 June 2013, the date he tested positive at the US World Championship trials. <br />The American team finished second in London's Olympic Stadium behind Jamaica, who were anchored by Usain Bolt on their way to a new world record.
