Radetinac was born in Serbia but moved to
Linköping, Sweden as an 18-year-old. There he joined local side
Linköpings FF and eventually started playing with their first team in the fourth and fifth tier of Swedish football. In 2007, he was picked up by nearby
Superettan team
Åtvidabergs FF where he became an immediate starter and only missed five league games during his five years with the club. In 2009 Åtvidaberg was promoted to
Allsvenskan for the first time since 1982, but was immediately relegated again the following year. Even though the club won promotion again in the
2011 Superettan he still made the move to another Allsvenskan side,
Mjällby AIF, at the end of that year. During the summer of 2013 he was offered a contract by
Stockholm based club
AIK but instead chose to sign a 3.5-year deal with their archrivals
Djurgårdens IF. On 14 December 2024 he announced that it would be his last season, and after 303 competition games, the upcoming game against Legia Warzawa in UECL on 19 December will be his last. ==International career==