A new-look Great Britain quartet won 4x100m bronze in the final race of day nine of the World Championships.
With Jona Efoloko, 22, preferred to Adam Gemili on the opening leg and Reece Prescod on the anchor, Britain held off Jamaica to ensure a medal.
Canada exploited a slack final changeover from the United States to take gold ahead of their neighbour.
A mystery leg injury to Dina Asher-Smith cost Great Britain’s women a shot at a medal in the 4x100m relay.
The 26-year-old, who finished fourth in the 100m and won bronze over 200m during a hectic schedule in Oregon, hobbled through the final 15m of her third leg.
Great Britain, who had been third in the race, slipped back to eighth as she slowed. Daryll Neita ran the fastest split of anyone in the race – 9.57 seconds – on the anchor leg, but it was only enough to regain sixth.
