Rađen has also won 2 LEN Euroleagues with his former clubs Partizan Raiffeisen (2011) and VK Crvena zvezda (2013).

On 16 January, at the European Championship Rađen scored in the first game two goals in an 8–5 win against Spain.

VK Partizan VK Crvena Zvezda Olympiacos CSM Digi Oradea Dynamo Moscow On 15 May 2015, Serbian media published that Rađen was tested positive for cocaine after the World League game between Serbia and Spain, held on 17 February 2015.

On 18 May 2015, he was officially temporary suspended by FINA due to continued investigation into his positive doping results to cocaine metabolites.

[7] On 24 August 2015, he was officially suspended on a 4-year period by FINA for positive doping results; from tests taking place on 17 February, and nearly two months later, on 15 April.