This study investigates hamstring injury risk in football players using artificial intelligence-based motion analysis (OpenPose) and evaluates the effects of a targeted exercise intervention (FUNBALL). Hamstring risk is assessed during a 30-m sprint using sagittal-plane video analysis, and players classified as medium or high risk receive a four-month FUNBALL program. A pre-post intervention design is employed, with sprint performance, agility, balance, jumping ability, kicking power, and cognitive function assessed using standardized field and cognitive tests.