Nesta Carter, Michael Frater (3nd L), Yohan Blake (L) and Usain Bolt (R) of Jamaica celebrate winning their men's 4x100 metres relay final at the IAAF World Athletics Championships in Daegu September 4, 2011. Jamaica set a new world record with a time of 37.04 seconds. REUTERS/Max Rossi (SOUTH KOREA - Tags: SPORT ATHLETICS)