A ten-year old girl from Bahrain caused a splash after becoming the youngest swimmer ever to compete at a World Championship.
Alzain Tareq, daughter of former professional swimmer Tareq Salem, raced in the women's 50m butterfly heats in Kazan.
Tareq, who stands at just 4ft 2in, finished last but is already the fastest swimmer in her country.
"I'm happy, I feel so happy. It was really cool," she told reporters after competing against adults almost three times her age.
The Bahrain schoolgirl now has a clear goal just one year from Rio de Janeiro 2016: "I want to swim at the Olympics".