On November 24, 2012, Milanović won Souboj Titánů, a four-man tournament under K-1 rules in Plzeň, Czech Republic.
He was awarded King of the titans title as the best fighter on the tournament, who was invited only one day before it happened.
[2][3][4] He faced Jason Wilnis in a super fight at K-1 World Grand Prix FINAL in Zagreb on March 15, 2013, in the -85 kg category.
He took a unanimous decision victory over Ibrahim El Bouni at Final Fight Championship 3: Jurković vs. Cătinaș in Split on April 19, 2013.
Initially, he was suspended for only one year but the World Anti-Doping Agency (WADA) appealed to the Court of Arbitration for Sport.