World Cup 2010 Behind Bars is a soccer competition, held in Bangkok’s Klong Prem Central Prison, between 18 seven-player teams, made-up of inmates.

On June 10, the opening match, between Mexico and South Africa, was played on a muddy soccer pitch, inside the Thai prison, under the watchful eyes of dozen guards. It ended in a 1-1 draw, but the prisoners on the sidelines enjoyed every minute of the rare spectacle. They cheered and banged cow bells for the entire match, showing their support for the teams.

The World Cup Behind Bars was also held in 2002 and 2006 and this year it features 18 seven-player teams, from 45 different countries, picked from the prison’s 1,000 inmates population. They can each represent whatever nation they want, even if it’s not their own, and free spots are taken by Thai prisoners.

The winners of the World Cup Behind Bars 2010 will receive a replica of the FIFA World Cup trophy.