BBC Sport - World Swimming Championships: Adam Peaty powers to second gold

Peaty powers to historic second gold

Great Britain's Adam Peaty wins the 50m breaststroke final at the World Swimming Championships to become the first man to complete the 50m and 100m double.

Peaty, who set a new world record in the semi-final, beat South Africa's Van der Burgh by 0.15 seconds in Kazan, with American Kevin Cordes third.