Usain Bolt won his third gold medal of the 2012 Olympics as he anchored Jamaica’s sprint relay team to a sensational world record.

Jamaica’s quartet clocked 36.84 seconds to smash the old mark by two-tenths of a second and leave the USA team with silver.

Nesta Carter and Michael Frater produced excellent first and second legs but it was 100m and 200m silver medallist Yohan Blake’s blistering third leg that set the platform.

Bolt provided the perfect finale – exploding away to leave Ryan Bailey trailing as the capacity crowd stood to acclaim him.

Canada were initially given bronze before being disqualified when third-leg runner Jared Connaughton was seen to have stepped inside his lane, meaning Trinidad and Tobago were promoted to third place.

Read more: http://www.bbc.co.uk/sport/0/olympics/18913023

Source: BBC