Jamaica claim Relay gold in record time

Jamaica claim Relay gold in record time

The quartet of Nesta Carter, Michael Frater, Yohan Blake and Bolt finished first in a time of 36.84.

It completed another memorable Olympic Games for Bolt, who successfully defended his 100m and 200m titles at London 2012.

USA claimed silver in a time of 37.04, with Trinidad and Tobago (38.12) picking up bronze.