Prisons in Thailand stage Muay Thai (a form of kickboxing) matches between inmates and foreign fighters to entertain prisoners and to promote good health. The fighters can also reduce their their sentences, and perhaps even win freedom, by doing well in bouts.
Getty Images photographer Borja Sanchez-Trillo visited Klong Pai prison in Nakhon Ratchasima to document the event known as "Prison Fight".
An inmate and a foreign fighter pose before their fight at Klong Pai prisonBorja Sanchez-Trillo/Getty ImagesAn inmate kicks a foreigner fighter in the face during their boutBorja Sanchez-Trillo/Getty ImagesAn inmate trains before his fight at Klong Pai prisonBorja Sanchez-Trillo/Getty ImagesForeign fighters watch a Muay Thai fight before their boutsBorja Sanchez-Trillo/Getty ImagesInmates react during a Muay Thai fight at Klong Pai prisonBorja Sanchez-Trillo/Getty ImagesAn inmate shows a 'Round 1' banner during a fight at Klong Pai prisonBorja Sanchez-Trillo/Getty ImagesA foreign fighter and an inmate compete during a Muay Thai fight at Klong Pai prisonBorja Sanchez-Trillo/Getty ImagesA foreign fighter warms up before his fightBorja Sanchez-Trillo/Getty ImagesAssistants massage an inmate before his fight, as a prison officer stands byBorja Sanchez-Trillo/Getty ImagesAn inmate is helped after he falls to the floor during a Muay Thai fightBorja Sanchez-Trillo/Getty ImagesAn inmate stretches before his fight, while a officer stands guard at Klong Pai prisonBorja Sanchez-Trillo/Getty ImagesBlood is seen on an inmate's boxing glove as he rests during a Muay Thai fightBorja Sanchez-Trillo/Getty ImagesA bloodied inmate receives treatment during a break between roundsBorja Sanchez-Trillo/Getty ImagesA prison officer holds rounds indicator signs before fights beginBorja Sanchez-Trillo/Getty Images
