US stripped of Olympic relay medals

The entire United States 4x100m relay team have been stripped of their London 2012 Olympic silver medals as a consequence of Tyson Gay's drugs ban. Former 100m and 200m world champion Gay was suspended for a year after testing positive for a banned anabolic steroid. The 32-year-old returned his London 2012 medal when his suspension was announced in May 2014.

http://www.bbc.com