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Date & Time: 1255-1555 BST on BBC iPlayer, BBC Sport website & app
The World Relay Championships take place this weekend live on BBC iPlayer and the BBC Sport website and app. Here is how to watch all the action:
World Relay Championships
Date: Saturday 2 May Time: from 12:55 BST
Venue: Gaborone, Botswana
We begin with heats on day one of the World Relays.
The heats of the Mixed 4x100m and 4x400m events are followed by the Women's and Men's 4x100m and Women's and Men's 4x400m heats this afternoon.
These races are crucial to qualification for the World Athletics Championships in Beijing in 2027. The top two in each of the three heats in each event will secure qualification to the World Championships as will the next two quickest teams to finish.
Those eight teams will also advance to Sunday's finals in Botswana.
Image source, BBC Sport
Image source, Getty ImagesOlympic 4x100m bronze medalists Zharnel Hughes and Jeremiah Azu will race in Botswana.
Team GB won medals in all five relay events at the Paris Olympics in 2024 and many of the athletes who helped drive that success will be in action again in Gaborone.
The squad includes three of the four sprinters who won bronze medals in the Men’s 4x100m relay in Paris - reigning world indoor 60m champion Jeremiah Azu, British record holder Zharnel Hughes and Nethaneel Mitchell-Blake.
The Women’s 4x100m squad is led by Imani-Lara Lansiquot, the only returning member of the team that won silver at the last Olympics. Success Eduan and Nia Wedderburn-Goodison will also race a year on from claiming gold medals on their senior debuts at last year’s World Relays event in China.
The Men’s 4x400m squad includes four more athletes who won relay bronze medals in Paris with Charlie Dobson, Lewis Davey, Alex Haydock-Wilson and Toby Harries all named.
There are also four Olympic bronze medalists in the Women’s 4x400m team as Laviai Nielsen, Lina Neilsen, Nicole Yeargin and Yemi Mary John have all traveled to Gaborone.
Image source, Getty ImagesElaine Thompson-Herah could return for Jamaica in the Women's 4x100m.
Five-time Olympic champion Elaine Thompson-Herah could return for her first international competition since 2022 after being named in the Jamaica squad.
The five-time Olympic champion tore her achilles just months before the Paris Olympics in 2024 and only returned to racing at domestic meets earlier this year.
Thompson-Herah won 100m and 200m gold medals at both the 2016 Olympics in Rio De Janeiro and the 2020 Olympics in Tokyo where she also added gold in the Women's 4x100m.
She has also set her sights on the Commonwealth Games in Glasgow this summer, where she sasy she will defend the 100m and 200m titles she won in Birmingham back in 2022.