Parading: Zara Phillips shows off her silver medal London Olympics 2012
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.
Zara Phillips celebrates with her Silver medal during the Team Eventing Medal ceremony on day four of the London 2012 Olympic Games as the crowds cheer her on.
Nathan Adrian, Ryan Lochte, Cullen Jones, and Michael Phelps- USA swimming
Abby Johnston and Kelci Bryant win silver Medal in synchronized diving (USA)