Jamaica's 4x100m men's and women's relay teams line-up for the action-packed final later today has been named with Usain Bolt and Shelly-Ann Fraser-Pryce given the job of anchoring the teams.
For the men's 4x100m team Asafa Powell will had over the baton to Yohan Blake he hands over to Nickel Ashmeade and Ashmeade will deliver to Olympic champion Usain Bolt.
In the women's 4x100m event Christania Williams will pass the baton to two-times Rio Olympics gold medallist Elaine Thompson, she will pass it over to Veronica Campbell-Brown and she will deliver it to Shelly-Ann Fraser-Pryce.
In the women's 4x400m round 1 relay heats: Christine Day will hand over to Anneisha McLaughlin-Whilby, she passes it to Chrisann Gordon and she delivers to Novlene Williams-Mills.
The men's 4x400m relay team has not yet been named.
READ: Olympics schedule for Jamaican athletes - Friday, August 19 [2]