Live coverage of the sprint relay finals. The men's and women's events are both expected to be a showdown between Jamaica and the USA, but Great Britain harbour medal ambitions. Show more
Discover 11,128,835 listings and 277,920 playable programmes from the BBC
Live coverage of the sprint relay finals. The men's and women's events are both expected to be a showdown between Jamaica and the USA, but Great Britain harbour medal ambitions. Show more