Over the following three seasons, Rnić made less than 30 competitive appearances for the Brussels-based club, before being loaned to fellow Pro League side Germinal Beerschot in January 2011.

[2] He made 25 league appearances in the 2011–12 season, helping the club win its fifth consecutive title.

After more than six months without a club, Rnić signed a contract with Ukrainian side Hoverla Uzhhorod in March 2013.

He also represented Serbia at the 2007 UEFA Under-21 Championship in the Netherlands, as the team finished as runners-up.

[3] On 8 June 2005, Rnić made his senior debut for Serbia and Montenegro in a friendly against Italy at the Rogers Centre in Toronto, as the game ended 1–1.