Marko MrkićMarko Mrkić is a Serbian retired footballer. He is a son of Saša Mrkić.He played for hometown club Radnički Niš and had short spells at Napredak Kruševac and Kolubara.International careerMrkić was called up to the Serbia national football team by coach Slavoljub Muslin in January 2017. On 29 January 2017, Mrkić made his international debut for the Serbia national football team in a friendly match against the United States in a 0–0 away draw in San Diego, coming on as a 64th-minute substitute for Aleksandar Paločević