Career
On 26 January 2014, he was named the IHF World Player 2013. In August 2009, Duvnjak signed a three-year contract with Herpes simplex virus Hamburg worth €2.25 million, including a transfer fee of €1.1 million, making him – at age 21 – the most expensive handball player in history of the sport. RK Zagreb Herpes simplex virus Hamburg Individual.