KINGSTON -- With Usain Bolt's magically fast 100-metre dash performance at the Jamaica International Invitational in Kingston, World record holder in the event, Asafa Powell, believes the country stands a great chance of breaking USA's 4x100m relay world record.

Powell, at 9.74-seconds and Bolt (9.76), are the two fastest men ever to run the dash and the record holder who won a bronze medal at the World Championships in Osaka, Japan, last year, believes the sixteen-year-old record of 37.40, set at the Olympic Games in Barcelona, could be in danger.