Child prostitution will 'get worse during World Cup'
31 May 2014 Last updated at 10:41 BST
England football players heading for the World Cup in Brazil are taking part in a high-profile campaign warning travelling fans about the dangers of so-called "sex tourism".
Anna, a 16-year-old Brazilian girl, told the BBC's Wyre Davies: "I have lots of friends who go with foreigners, they have money and give the girls lots of things."
Jessica Barbosa from the British charity ActionAid explained that child prostitution "is going to be worse during the World Cup".
First broadcast on BBC Radio 4's Today programme on Saturday 31 May.