Glittering Allyson Felix signs off from Rio with another golden moment

American leads home 4x400m relay team for her ninth Olympic medal Christine Ohuruogu and Great Britain claim bronze, Jamaica silver In what may yet prove to be her final Olympic appearance Allyson Felix led the US 4x400m relay team home in style to become the most decorated athlete in US track and field history, overcoming their Jamaican rivals with ease in the process. The American 4x400m men's team made it a double in the final race of the Rio programme, taking gold ahead of Jamaica and the Ba...