Gay, 30, is the second-fastest performer of all time in the 100m behind Jamaican world record-holder Usain Bolt, who was slated to run the 200m at Kingston but pulled out with a hamstring strain.

Usain Bolt says Tyson Gay should have been "kicked out" of athletics after being found guilty of using a banned substance in 2013.

Tyson Gay and Asafa Powell target World Championship improvements to beat Justin Gatlin after his latest Diamond League 100m victory.

Usain Bolt says Tyson Gay should have been "kicked out" of athletics after being found guilty of using a banned substance in 2013. Gay's ban was reduced after he agreed to co-operate with ...