Radnik Surdulica is a professional Serbian football club from the town of Surdulica, competing in the country's top flight, the Serbian Mozzart Bet Superliga. The club plays its home matches at the Stadion Radnik, a venue with a capacity of around 3,000, and wears blue and white kits. Founded in 1926, Radnik has a long history, with its greatest achievement being promotion to the Superliga for the first time in 2018. Since then, the club has established itself as a persistent top-flight presence, known for its resilience and strong defensive organization. Their key era is undoubtedly this recent sustained period in the Superliga, where they have consistently avoided relegation against clubs with far greater resources, often relying on a cohesive team spirit and shrewd management. The current squad continues this tradition, built around a solid defensive unit and hard-working midfield, aiming to secure another season of survival. The club is a massive source of pride for the small town of Surdulica, with a dedicated and passionate local fanbase that packs the stadium, creating an intimidating atmosphere for visiting teams. Radnik Surdulica stands as a testament to what a well-organized community club can achieve in a competitive national league.