Image source, Getty Images
Canada's Olympic Champions Aaron Brown (left), Jerome Blake (left centre), Brendon Rodney (right centre) and Andre de Grasse (right) will purpose for golden successful China
Nick Pennington
BBC Sport adjunct producer
The world's champion sprinters caput to China this play to compete for titles and qualification places for nan World Athletics Championships successful Tokyo this September.
You tin watch nan action connected nan BBC arsenic Guangzhou hosts nan seventh version of nan World Athletics Relays.
The mixed 4x100m and 4x400m relay events are group to make their world debut successful Guangzhou, while athletes will compete successful a full of six events, including nan women's 4x100m and 4x400m relay and nan men's 4x100m and 4x400m relay.
World way stars to look retired for
Olympic legends Shelly-Ann Fraser-Pryce, Wayde van Niekerk, Letsile Tebogo and Shericka Jackson will subordinate 730 athletes from 43 countries successful Guangzhou.
Canada's men's 4x100m gold-medal winning squad from Paris 2024 remains unchanged, led by nan country's joint-most dressed up Olympian Andre de Grasse.
He and his team-mates will beryllium battling for their nation's first World Relays title aft finishing 2nd to nan United States past year.
The USA squad includes Kenny Bednarek and chap world medallist Erriyon Knighton.
Great Britain will beryllium counting connected 60m world indoor champion Jeremiah Azu and Olympian Nethaneel Mitchell-Blake among their 30-strong team.
World Championships qualification up for grabs
Image source, Getty Images
60m world indoor champion Jeremiah Azu will statement up for Great Britain successful Guangzhou
Qualification places for nan World Athletics Championships successful Tokyo are disposable connected some days of action successful Guangzhou.
The apical 14 teams successful each of nan men's and women's 4x100m and 4x400m, arsenic good arsenic nan 4x400m relay, will unafraid their spot for September.
The 2 remaining spots successful each arena will beryllium wished by nan World Athletics 'top list', which is nan world governing body's points-based strategy of ranking athletes.
On Saturday, nan apical 2 teams successful each of nan 4 heats will advancement to nan final, while securing their qualification for nan Worlds.
The remaining teams will compete connected Sunday successful nan repechage round, pinch qualifying spots for nan apical 2 successful each of nan 3 heats - a strategy introduced astatine past year's World Relays successful nan Bahamas.
World Athletics Relays schedule and BBC coverage
Live sum of each nan action, including nan finals of each event, will beryllium disposable connected iPlayer, nan BBC Sport website and BBC Sport app from 11:50 BST connected Saturday, 10 May and from 11:55 BST connected Sunday, 11 May.
Saturday, 10 May
Mixed 4x100m relay heats
Mixed 4x400m relay information one
Women's 4x100m relay information one
Men's 4x100m relay information one
Women's 4x400m relay information one
Men's 4x400m relay information one
Sunday, 11 May
Mixed 4x100m relay final
Mixed 4x400m relay information two
Women's 4x400m relay information two
Men's 4x400m relay information two
Women's 4x100m relay information two
Men's 4x100m relay information two
Mixed 4x400m relay final
Women's 4x100m relay final
Men's 4x100m relay final
Women's 4x400m relay final
Men's 4x400m relay final