By United States Olympic Committee | May 13, 2015, 2:28 p.m. (ET)
(L-R) Trell Kimmons, Justin Gatlin, Tyson Gay and Ryan Bailey celebrate winning silver during the men's 4x100-meter final at the London 2012 Olympic Games at Olympic Stadium on Aug. 11, 2012 in London.

Attributable to Patrick Sandusky, USOC chief communications and public affairs officer:

"As expected, following USADA's decision in the Tyson Gay case, the IOC today confirmed that the U.S. team has been disqualified from the 4x100-meter race that was part of the athletics competition at the London 2012 Olympic Games. We will begin efforts to have the medals returned, and support all measures to protect clean athletes."